Question 1

A laser beam is incident from the air at an angle of 30.00 $\degree$ to the vertical onto a solution of Karo syrup in water.If the beam is refracted to 19.24 $\degree$to the vertical,what is the index of refraction of the syrup solution?

Accepted Answer

The answer of A laser beam is incident from the...

Question 2

The wave front shown at the left for light in air reaches the plane boundary between air and two transparent mediums with n1 = 1.5 and n2 = 3.00 respectively. 1 = 1.5 and n2 = 3.00 respectively.   Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right?   A) A B) B C) C D) D E) E" class="answers-bank-image d-inline" rel="preload" > Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right? 1 = 1.5 and n2 = 3.00 respectively.   Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right?   A) A B) B C) C D) D E) E" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 3

The laws of refraction and reflection are the same for sound as for light.The speed of sound in air is 340 m/s and in water it is 1510 m/s.If a sound wave approaches a plane water surface at an angle of incidence of 12.0 $\degree$,what is the angle of refraction?

Accepted Answer

The answer of The laws of refraction and reflection are...

Question 4

A light ray whose frequency is 6.00 *1014 Hz in vacuum is incident on water (n = 1.33) .The wavelength of the light after it enters the water is (in nm)

Accepted Answer

A)  798
B)  500
C)  665
D)  376
E)  266

Question 5

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 °\degree°  relative to the normal.If the index of refraction of water and glass are 1.33 and 1.5,respectively,at what angle (in degrees) does the light leave the glass (relative to its normal) ?

Accepted Answer

A)  26
B)  35
C)  42
D)  22
E)  48

Question 6

Two mirrors are at right angles to one another.A light ray is incident on the first at an angle of 30 °\degree°  with respect to the normal to the surface.What is the angle of reflection from the second surface?

Accepted Answer

A)  30 °\degree° 
B)  60 °\degree° 
C)  45 °\degree° 
D)  53 °\degree° 
E)  75 °\degree°

Question 7

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface.A light ray that reflects from mirror 1 at angle  θ	hetaθ  M1 then strikes the second mirror and reflects at  θ	hetaθ  M2 such that the angle between the ray reaching mirror 1 and the ray leaving mirror 2 is 180  °\degree° .The angle between the two mirrors is

Accepted Answer

A)  0  °\degree° .
B)  45  °\degree° .
C)  90  °\degree° .
D)  150  °\degree° .
E)  235  °\degree° .

Question 8

When a light ray travels between any two points,the path it takes is the one that (Hint: Eliminate answers you know are wrong. )

Accepted Answer

A)  covers the greatest distance.
B)  follows the greatest index of refraction.
C)  avoids travel in more than one medium.
D)  is the mean between the longest and the shortest paths.
E)  takes the least time. E

Question 9

When light is either reflected or refracted,the quantity that does not change in either process is its

Accepted Answer

A)  direction of travel.
B)  dispersion.
C)  frequency.
D)  speed.
E)  wavelength.

Question 10

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the air is 30 °\degree° ,what is the angle of refraction into the carbon tetrachloride?

Accepted Answer

A)  58 °\degree° 
B)  69 °\degree° 
C)  37 °\degree° 
D)  20 °\degree° 
E)  75 °\degree°

Question 11

A layer of kerosene (n = 1.45)is floating on water (n = 1.33).For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?

Accepted Answer

$\theta$  > 66.5$\degree$

Question 12

The index of refraction for red light in water is 1.331 and for blue light is 1.340.If a ray of white light enters the water at an angle of incidence of 83.00 $\degree$,what are the underwater angles of refraction for the blue and red components of the light?

Accepted Answer

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Question 13

A light ray strikes a hexagonal ice crystal floating in the air perpendicular to one face,as shown below.The hexagonal faces of the crystal are perpendicular to the plane of the page.All the rays shown are in the plane of the page,and nice = 1.30.Which outgoing ray is correct when the incoming ray strikes the crystal face on the left head on? ice = 1.30.Which outgoing ray is correct when the incoming ray strikes the crystal face on the left head on?   A) A B) B C) C D) D E) E" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 14

Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60 °\degree°  relative to the normal to the surface.What is the angle of refraction?

Accepted Answer

A)  20 °\degree° 
B)  60 °\degree° 
C)  32 °\degree° 
D)  64 °\degree° 
E)  15 °\degree° C

Question 15

A light ray is partially reflected and partially refracted at a boundary between two media,the upper one having index of refraction n,the lower one having index of refraction n',as shown in the figure.The reflected ray is perpendicular to the refracted ray when

Accepted Answer

A)    n′=ntan⁡θmrcident n ^ { \prime } = n 	an 	heta _ { 	ext {mrcident } }n′=ntanθmrcident ​  .
B)    n′=ncot⁡θmrcident n ^ { \prime } = n \cot 	heta _ { 	ext {mrcident } }n′=ncotθmrcident ​  .
C)    n′=nsin⁡θindident sin⁡θreflection n ^ { \prime } = n \frac { \sin 	heta _ { 	ext {indident } } } { \sin 	heta _ { 	ext {reflection } } }n′=nsinθreflection ​sinθindident ​​  .
D)    n′=nsin⁡θreflection sin⁡θreflection n ^ { \prime } = n \frac { \sin 	heta _ { 	ext {reflection } } } { \sin 	heta _ { 	ext {reflection } } }n′=nsinθreflection ​sinθreflection ​​  .
E)    n′=nsec⁡θindident n ^ { \prime } = n \sec 	heta _ { 	ext {indident } }n′=nsecθindident ​  .

Question 16

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface.The edges of the two mirrors meet at a 30 °\degree°  angle.A light ray that approaches mirror 1 is parallel to mirror 2.The angle of reflection of that ray from mirror 1 is

Accepted Answer

A)  0 °\degree° .
B)  30 °\degree° .
C)  60 °\degree° .
D)  90 °\degree° .
E)  120 °\degree° .

Question 17

When light scatters from a rough surface,the law  θ1′=θ1	heta _ { 1 } ^ { \prime } = 	heta _ { 1 }θ1′​=θ1​

Accepted Answer

A)  does not hold.
B)  holds on average,with reflected light from the surface leaving in the average direction of reflection.
C)  applies to each small relatively flat area of surface individually.
D)  applies only when the particle aspect of light predominates.
E)  applies only when the wavelength of light is greater than 800 nm but less than 2000 nm.

Question 18

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the carbon tetrachloride is 20 °\degree° ,what is the angle of refraction into the air?

Accepted Answer

A)  20 °\degree° 
B)  30 °\degree° 
C)  38 °\degree° 
D)  69 °\degree° 
E)  26 °\degree°

Question 19

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46) .The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol,v2/v1,is

Accepted Answer

A)  1.99
B)  1.07
C)  0.932
D)  0.511
E)  0.760

Question 20

The angle between two plane mirrors that meet at one edge is 45 °\degree° .The change in direction of a ray that strikes the first mirror at a 60 °\degree°  angle of incidence when that ray reflects from the second mirror is

Accepted Answer

A)  0 °\degree° .
B)  45 °\degree° 
C)  90 °\degree° 
D)  150 °\degree° 
E)  270 °\degree°

Exam 25: Reflection and Refraction of Light

A laser beam is incident from the air at an angle of 30.00 $\degree$ to the vertical onto a solution of Karo syrup in water.If the beam is refracted to 19.24 $\degree$ to the vertical,what is the index of refraction of the syrup solution?

Correct Answer
verified

The wave front shown at the left for light in air reaches the plane boundary between air and two transparent mediums with n₁ = 1.5 and n₂ = 3.00 respectively. Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right?

Correct Answer
verified

The laws of refraction and reflection are the same for sound as for light.The speed of sound in air is 340 m/s and in water it is 1510 m/s.If a sound wave approaches a plane water surface at an angle of incidence of 12.0 $\degree$ ,what is the angle of refraction?

Correct Answer
verified

A light ray whose frequency is 6.00 *10¹⁴ Hz in vacuum is incident on water (n = 1.33) .The wavelength of the light after it enters the water is (in nm)

Correct Answer
verified

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 $\degree$ relative to the normal.If the index of refraction of water and glass are 1.33 and 1.5,respectively,at what angle (in degrees) does the light leave the glass (relative to its normal) ?

Correct Answer
verified

Two mirrors are at right angles to one another.A light ray is incident on the first at an angle of 30 $\degree$ with respect to the normal to the surface.What is the angle of reflection from the second surface?

Correct Answer
verified

Correct Answer
verified

When a light ray travels between any two points,the path it takes is the one that (Hint: Eliminate answers you know are wrong. )

Correct Answer
verified
E

When light is either reflected or refracted,the quantity that does not change in either process is its

Correct Answer
verified

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the air is 30 $\degree$ ,what is the angle of refraction into the carbon tetrachloride?

Correct Answer
verified

A layer of kerosene (n = 1.45)is floating on water (n = 1.33).For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?

Correct Answer
verified
\(\theta\) > 66.5\(\degree\)

The index of refraction for red light in water is 1.331 and for blue light is 1.340.If a ray of white light enters the water at an angle of incidence of 83.00 $\degree$ ,what are the underwater angles of refraction for the blue and red components of the light?

Correct Answer
verified
47.79 (blu...
View Answer

Correct Answer
verified

Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60 $\degree$ relative to the normal to the surface.What is the angle of refraction?

Correct Answer
verified
C

Correct Answer
verified

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface.The edges of the two mirrors meet at a 30 $\degree$ angle.A light ray that approaches mirror 1 is parallel to mirror 2.The angle of reflection of that ray from mirror 1 is

Correct Answer
verified

When light scatters from a rough surface,the law $\theta _ { 1 } ^ { \prime } = \theta _ { 1 }$

Correct Answer
verified

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the carbon tetrachloride is 20 $\degree$ ,what is the angle of refraction into the air?

Correct Answer
verified

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46) .The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol,v₂/v₁,is

Correct Answer
verified

The angle between two plane mirrors that meet at one edge is 45 $\degree$ .The change in direction of a ray that strikes the first mirror at a 60 $\degree$ angle of incidence when that ray reflects from the second mirror is

Correct Answer
verified

Exam 25: Reflection and Refraction of Light

A laser beam is incident from the air at an angle of 30.00 °\degree° to the vertical onto a solution of Karo syrup in water.If the beam is refracted to 19.24 °\degree° to the vertical,what is the index of refraction of the syrup solution?

Correct AnswerverifiedShow Answer

The wave front shown at the left for light in air reaches the plane boundary between air and two transparent mediums with n1 = 1.5 and n2 = 3.00 respectively. Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right?

Correct AnswerverifiedShow Answer

The laws of refraction and reflection are the same for sound as for light.The speed of sound in air is 340 m/s and in water it is 1510 m/s.If a sound wave approaches a plane water surface at an angle of incidence of 12.0 °\degree° ,what is the angle of refraction?

Correct AnswerverifiedShow Answer

A light ray whose frequency is 6.00 *1014 Hz in vacuum is incident on water (n = 1.33) .The wavelength of the light after it enters the water is (in nm)

Correct AnswerverifiedShow Answer

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 °\degree° relative to the normal.If the index of refraction of water and glass are 1.33 and 1.5,respectively,at what angle (in degrees) does the light leave the glass (relative to its normal) ?

Correct AnswerverifiedShow Answer

Two mirrors are at right angles to one another.A light ray is incident on the first at an angle of 30 °\degree° with respect to the normal to the surface.What is the angle of reflection from the second surface?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

When a light ray travels between any two points,the path it takes is the one that (Hint: Eliminate answers you know are wrong. )

Correct AnswerverifiedE

When light is either reflected or refracted,the quantity that does not change in either process is its

Correct AnswerverifiedShow Answer

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the air is 30 °\degree° ,what is the angle of refraction into the carbon tetrachloride?

Correct AnswerverifiedShow Answer

A layer of kerosene (n = 1.45)is floating on water (n = 1.33).For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?

Correct Answerverified\(\theta\) > 66.5\(\degree\)

The index of refraction for red light in water is 1.331 and for blue light is 1.340.If a ray of white light enters the water at an angle of incidence of 83.00 °\degree° ,what are the underwater angles of refraction for the blue and red components of the light?

Correct Answerverified47.79 (blu...View AnswerShow Answer

Correct AnswerverifiedShow Answer

Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60 °\degree° relative to the normal to the surface.What is the angle of refraction?

Correct AnswerverifiedC

A light ray is partially reflected and partially refracted at a boundary between two media,the upper one having index of refraction n,the lower one having index of refraction n',as shown in the figure.The reflected ray is perpendicular to the refracted ray when

Correct AnswerverifiedShow Answer

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface.The edges of the two mirrors meet at a 30 °\degree° angle.A light ray that approaches mirror 1 is parallel to mirror 2.The angle of reflection of that ray from mirror 1 is

Correct AnswerverifiedShow Answer

When light scatters from a rough surface,the law θ1′=θ1\theta _ { 1 } ^ { \prime } = \theta _ { 1 }θ1′​=θ1​

Correct AnswerverifiedShow Answer

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the carbon tetrachloride is 20 °\degree° ,what is the angle of refraction into the air?

Correct AnswerverifiedShow Answer

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46) .The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol,v2/v1,is

Correct AnswerverifiedShow Answer

The angle between two plane mirrors that meet at one edge is 45 °\degree° .The change in direction of a ray that strikes the first mirror at a 60 °\degree° angle of incidence when that ray reflects from the second mirror is

Correct AnswerverifiedShow Answer

A laser beam is incident from the air at an angle of 30.00 $\degree$ to the vertical onto a solution of Karo syrup in water.If the beam is refracted to 19.24 $\degree$ to the vertical,what is the index of refraction of the syrup solution?

Correct Answer
verified

The wave front shown at the left for light in air reaches the plane boundary between air and two transparent mediums with n₁ = 1.5 and n₂ = 3.00 respectively. Which diagram below correctly illustrates the wave front after it has entered the two mediums at the right?

Correct Answer
verified

The laws of refraction and reflection are the same for sound as for light.The speed of sound in air is 340 m/s and in water it is 1510 m/s.If a sound wave approaches a plane water surface at an angle of incidence of 12.0 $\degree$ ,what is the angle of refraction?

Correct Answer
verified

A light ray whose frequency is 6.00 *10¹⁴ Hz in vacuum is incident on water (n = 1.33) .The wavelength of the light after it enters the water is (in nm)

Correct Answer
verified

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 $\degree$ relative to the normal.If the index of refraction of water and glass are 1.33 and 1.5,respectively,at what angle (in degrees) does the light leave the glass (relative to its normal) ?

Correct Answer
verified

Two mirrors are at right angles to one another.A light ray is incident on the first at an angle of 30 $\degree$ with respect to the normal to the surface.What is the angle of reflection from the second surface?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the air is 30 $\degree$ ,what is the angle of refraction into the carbon tetrachloride?

Correct Answer
verified

Correct Answer
verified
\(\theta\) > 66.5\(\degree\)

The index of refraction for red light in water is 1.331 and for blue light is 1.340.If a ray of white light enters the water at an angle of incidence of 83.00 $\degree$ ,what are the underwater angles of refraction for the blue and red components of the light?

Correct Answer
verified
47.79 (blu...
View Answer

Correct Answer
verified

Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60 $\degree$ relative to the normal to the surface.What is the angle of refraction?

Correct Answer
verified
C

Correct Answer
verified

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface.The edges of the two mirrors meet at a 30 $\degree$ angle.A light ray that approaches mirror 1 is parallel to mirror 2.The angle of reflection of that ray from mirror 1 is

Correct Answer
verified

When light scatters from a rough surface,the law $\theta _ { 1 } ^ { \prime } = \theta _ { 1 }$

Correct Answer
verified

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461) .If the angle of incidence into the water from the carbon tetrachloride is 20 $\degree$ ,what is the angle of refraction into the air?

Correct Answer
verified

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46) .The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol,v₂/v₁,is

Correct Answer
verified

The angle between two plane mirrors that meet at one edge is 45 $\degree$ .The change in direction of a ray that strikes the first mirror at a 60 $\degree$ angle of incidence when that ray reflects from the second mirror is

Correct Answer
verified