Question 1

Light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0.In this liquid,what is the wavelength of the light? (c = 3.0 × 108 m/s)

Accepted Answer

A) 1200 nm 
B) 600 nm 
C) 300 nm 
D) 150 nm 
E) 200 nm 
A) 1200 nm 
B) 600 nm 
C) 300 nm 
D) 150 nm 
E) 200 nm

Question 2

In a two-slit experiment using coherent light,the distance between the slits and the screen is 1.10 m,and the distance between the slits is 0.100 mm.If the first-order bright fringe is measured to be 3.40 cm from the centerline,what is the wavelength of the light?

Accepted Answer

A) 354 nm 
B) 241 nm 
C) 133 nm 
D) 3.09 μm 
E) 2.11 μm 
A) 354 nm 
B) 241 nm 
C) 133 nm 
D) 3.09 μm 
E) 2.11 μm

Question 3

In a two-slit experiment,the slit separation is 3.00 × $10^{ - 5}$ m.The interference pattern is created on a screen that is 2.00 m away from the slits.If the 7th bright fringe on the screen is 10.0 cm away from the central fringe,what is the wavelength of the light?

Accepted Answer

A) 100 nm 
B) 204 nm 
C) 214 nm 
D) 224 nm 
E) 234 nm 
A) 100 nm 
B) 204 nm 
C) 214 nm 
D) 224 nm 
E) 234 nm

Question 4

The distance between the ruled lines on a grating is 1900 nm.The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band.What is the angular width of the gap between the first order spectrum and the second order spectrum?

Accepted Answer

A) 3.3° 
B) 4.3° 
C) 5.3° 
D) 6.3° 
E) 2.3° 
A) 3.3° 
B) 4.3° 
C) 5.3° 
D) 6.3° 
E) 2.3°

Question 5

Coherent light of wavelength 575 nm falls on a double-slit and the third-order bright fringe is seen at an angle of 6.5° away from the centerline.How far apart are the double slits?

Accepted Answer

A) 5.0 μm 
B) 10 μm 
C) 15 μm 
D) 20 μm 
A) 5.0 μm 
B) 10 μm 
C) 15 μm 
D) 20 μm

Question 6

An oil film with refractive index 1.48 and thickness 290 nm is floating on water and illuminated with white light at normal incidence.What is the wavelength of the dominant color in the reflected light?

Accepted Answer

A) green (541 nm) 
B) blue-green (493 nm) 
C) violet (404 nm) 
D) yellow (572 nm) 
E) blue (470 nm) 
A) green (541 nm) 
B) blue-green (493 nm) 
C) violet (404 nm) 
D) yellow (572 nm) 
E) blue (470 nm)

Question 7

Two radio antennas are 10 km apart on a north-south axis on high mountain tops at the seacoast.The antennas broadcast identical AM radio signals,in phase,at a frequency of 4.70 MHz.A steamship,200 km offshore,travels toward the north at 15 km/h and passes east of the antennas.A radio on board the ship is tuned to the broadcast frequency.The reception of the radio signal on the ship is a maximum at a given instant.How much later until the next occurrence of maximum reception? (c = 3.00 × 108 m/s)

Accepted Answer

A) 5.1 min 
B) 3.8 min 
C) 6.4 min 
D) 7.7 min 
E) 8.9 min 
A) 5.1 min 
B) 3.8 min 
C) 6.4 min 
D) 7.7 min 
E) 8.9 min

Question 8

Using monochromatic light of 410 nm wavelength,a single thin slit forms a diffraction pattern,with the first minimum at an angle of 40.0° from central maximum.The same slit,when illuminated by a new monochromatic light source,produces a diffraction pattern with the second minimum at a 60.0° angle from the central maximum.What is the wavelength of this new light?

Accepted Answer

A) 276 nm 
B) 293 nm 
C) 309 nm 
D) 326 nm 
E) 342 nm 
A) 276 nm 
B) 293 nm 
C) 309 nm 
D) 326 nm 
E) 342 nm

Question 9

A round 0.85-mm-diameter hole is illuminated by infrared light of wavelength 2.5 μm What is the angle of the first dark fringe in the resulting pattern?

Accepted Answer

A) 0.21 degrees 
B) 3.6 × 10-3 degrees 
C) 1.2 × 10-2 degrees 
D) 4.8 × 10-2 degrees 
A) 0.21 degrees 
B) 3.6 × 10-3 degrees 
C) 1.2 × 10-2 degrees 
D) 4.8 × 10-2 degrees

Question 10

If the diameter of a radar dish is doubled,what happens to its resolving power assuming that all other factors remain unchanged?

Accepted Answer

A) The resolving power quadruples. 
B) The resolving power doubles. 
C) The resolving power is cut in half. 
D) The resolving power is reduced to one-quarter its original value. 
A) The resolving power quadruples. 
B) The resolving power doubles. 
C) The resolving power is cut in half. 
D) The resolving power is reduced to one-quarter its original value.

Question 11

A soap bubble with air on both sides has an index of refraction of 1.33.What minimum thickness of the wall of this bubble will ensure maximum reflectance of normally incident light having a wavelength of 530 nm?

Accepted Answer

The answer of A soap bubble with air on both...

Question 12

Monochromatic coherent light shines through a pair of slits.If the wavelength of the light is decreased,which of the following statements are true of the resulting interference pattern? (There could be more than one correct choice.)

Accepted Answer

A) The distance between the maxima stays the same. 
B) The distance between the maxima decreases. 
C) The distance between the minima stays the same. 
D) The distance between the minima increases. 
E) The distance between the minima decreases. 
A) The distance between the maxima stays the same. 
B) The distance between the maxima decreases. 
C) The distance between the minima stays the same. 
D) The distance between the minima increases. 
E) The distance between the minima decreases.

Question 13

A single-slit diffraction pattern is formed on a distant screen.Assuming the angles involved are small,by what factor will the width of the central bright spot on the screen change if the wavelength of the illuminating light is doubled?

Accepted Answer

A) It will be cut to one-quarter its original size. 
B) It will be cut in half. 
C) It will double. 
D) It will become four times as large. 
E) It will become eight times as large. 
A) It will be cut to one-quarter its original size. 
B) It will be cut in half. 
C) It will double. 
D) It will become four times as large. 
E) It will become eight times as large.

Question 14

What is the minimum distance between two points on the Moon that could be just resolved by the Keck telescope in Hawaii using a wavelength of 600 nm and having perfect optics? The diameter of this telescope mirror system is 10 m,and the distance to the Moon is 380,000 km.

Accepted Answer

The answer of What is the minimum distance between two...

Question 15

A grating has 6.00 × 103 lines per centimeter ruled on it.What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

Accepted Answer

A) 20.5° 
B) 30.5° 
C) 40.6° 
D) 50.5° 
A) 20.5° 
B) 30.5° 
C) 40.6° 
D) 50.5°

Question 16

When light travels from air into water,

Accepted Answer

A) its velocity, wavelength and frequency all change. 
B) its velocity changes, but its frequency and wavelength do not change. 
C) its frequency changes, but its velocity and wavelength do not change. 
D) its velocity and wavelength change, but its frequency does not change. 
E) its wavelength changes, but its velocity and frequency do not change. 
A) its velocity, wavelength and frequency all change. 
B) its velocity changes, but its frequency and wavelength do not change. 
C) its frequency changes, but its velocity and wavelength do not change. 
D) its velocity and wavelength change, but its frequency does not change. 
E) its wavelength changes, but its velocity and frequency do not change.

Question 17

Light of wavelength 550 nm in air is found to travel at 1.96 × 108 m/s in a certain liquid.What are the frequency and wavelength of the light in this liquid? (c = 3.0 × 108 m/s)

Accepted Answer

Question 18

If a sheet containing a single slit is heated (without damaging it)and therefore expands,what happens to the angular location of the first-order diffraction minimum?

Accepted Answer

A) It moves toward the centerline. 
B) It moves away from the centerline. 
C) It doesn't change. 
A) It moves toward the centerline. 
B) It moves away from the centerline. 
C) It doesn't change.

Question 19

A single-slit diffraction pattern is formed on a distant screen.Assuming the angles involved are small,by what factor will the width of the central bright spot on the screen change if the slit width is doubled?

Accepted Answer

A) It will be cut to one-quarter its original size. 
B) It will be cut in half. 
C) It will double. 
D) It will become four times as large. 
E) It will become eight times as large. 
A) It will be cut to one-quarter its original size. 
B) It will be cut in half. 
C) It will double. 
D) It will become four times as large. 
E) It will become eight times as large.

Question 20

A soap bubble has an index of refraction of 1.33.What minimum thickness of this bubble will ensure maximum reflectance of normally-incident light having a wavelength of 530 nm?

Accepted Answer

A) 24.9 nm 
B) 76.9 nm 
C) 99.6 nm 
D) 199 nm 
E) 398 nm 
A) 24.9 nm 
B) 76.9 nm 
C) 99.6 nm 
D) 199 nm 
E) 398 nm

Exam 24: Wave Optics

Light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0.In this liquid,what is the wavelength of the light? (c = 3.0 × 108 m/s)

In a two-slit experiment using coherent light,the distance between the slits and the screen is 1.10 m,and the distance between the slits is 0.100 mm.If the first-order bright fringe is measured to be 3.40 cm from the centerline,what is the wavelength of the light?

In a two-slit experiment,the slit separation is 3.00 × 10−510^{ - 5}10−5 m.The interference pattern is created on a screen that is 2.00 m away from the slits.If the 7th bright fringe on the screen is 10.0 cm away from the central fringe,what is the wavelength of the light?

The distance between the ruled lines on a grating is 1900 nm.The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band.What is the angular width of the gap between the first order spectrum and the second order spectrum?

Coherent light of wavelength 575 nm falls on a double-slit and the third-order bright fringe is seen at an angle of 6.5° away from the centerline.How far apart are the double slits?

An oil film with refractive index 1.48 and thickness 290 nm is floating on water and illuminated with white light at normal incidence.What is the wavelength of the dominant color in the reflected light?

A round 0.85-mm-diameter hole is illuminated by infrared light of wavelength 2.5 μm What is the angle of the first dark fringe in the resulting pattern?

If the diameter of a radar dish is doubled,what happens to its resolving power assuming that all other factors remain unchanged?

A soap bubble with air on both sides has an index of refraction of 1.33.What minimum thickness of the wall of this bubble will ensure maximum reflectance of normally incident light having a wavelength of 530 nm?

Monochromatic coherent light shines through a pair of slits.If the wavelength of the light is decreased,which of the following statements are true of the resulting interference pattern? (There could be more than one correct choice.)

A single-slit diffraction pattern is formed on a distant screen.Assuming the angles involved are small,by what factor will the width of the central bright spot on the screen change if the wavelength of the illuminating light is doubled?

What is the minimum distance between two points on the Moon that could be just resolved by the Keck telescope in Hawaii using a wavelength of 600 nm and having perfect optics? The diameter of this telescope mirror system is 10 m,and the distance to the Moon is 380,000 km.

A grating has 6.00 × 103 lines per centimeter ruled on it.What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

When light travels from air into water,

Light of wavelength 550 nm in air is found to travel at 1.96 × 108 m/s in a certain liquid.What are the frequency and wavelength of the light in this liquid? (c = 3.0 × 108 m/s)

If a sheet containing a single slit is heated (without damaging it)and therefore expands,what happens to the angular location of the first-order diffraction minimum?

A single-slit diffraction pattern is formed on a distant screen.Assuming the angles involved are small,by what factor will the width of the central bright spot on the screen change if the slit width is doubled?

A soap bubble has an index of refraction of 1.33.What minimum thickness of this bubble will ensure maximum reflectance of normally-incident light having a wavelength of 530 nm?

Introduction

Kinematics: Motion in One Dimension

Newtonian Mechanics

Applying Newtons Laws

Circular Motion

Impulse and Linear Momentum

Work and Energy

Extended Bodies at Rest

Rotational Motion

Gases

Static Fluids

Fluids in Motion

First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge force and Energy

The Electric Field

Dc Circuits

Magnetism

Electromagnetic Induction

Vibrational Motion

Mechanical Waves

Reflection and Refraction

Mirrors and Lenses

Electromagnetic Waves

Special Relativity

Quantum Optics

Atomic Physics

Nuclear Physics

Particle Physics

Filters

Light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0.In this liquid,what is the wavelength of the light? (c = 3.0 × 10⁸ m/s)

In a two-slit experiment,the slit separation is 3.00 × $10^{ - 5}$ m.The interference pattern is created on a screen that is 2.00 m away from the slits.If the 7th bright fringe on the screen is 10.0 cm away from the central fringe,what is the wavelength of the light?

A grating has 6.00 × 10³ lines per centimeter ruled on it.What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

Light of wavelength 550 nm in air is found to travel at 1.96 × 10⁸ m/s in a certain liquid.What are the frequency and wavelength of the light in this liquid? (c = 3.0 × 10⁸ m/s)