Light with an intensity of 1 kW/m2 falls normally on a surface with an area of 1 cm2 and is completely absorbed. The force of the radiation on the surface is:

A) 1.0 * 10-4 N B) 3.3 *10-11 N C) 1.7 * 10-10 N D) 3.3* 10-10 N E) 6.7* 10-10 N A) 1.0 * 10-4 N B) 3.3 *10-11 N C) 1.7 * 10-10 N D) 3.3* 10-10 N E) 6.7* 10-10 N

Exam 33: Electromagnetic Waves

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The rectangular metal tank shown is filled with an unknown liquid. The observer, whose eye is level with the top of the tank, can just see corner E. The index of refraction of this liquid is: $The rectangular metal tank shown is filled with an unknown liquid. The observer, whose eye is level with the top of the tank, can just see corner E. The index of refraction of this liquid is:$

(Multiple Choice)

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Question 41

The index of refraction of a substance is:

(Multiple Choice)

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Question 42

A clear sheet of polaroid is placed on top of a similar sheet so that their polarizing axes make an angle of 30 $\degree$ with each other. The ratio of the intensity of emerging light to incident unpolarized light is:

(Multiple Choice)

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Question 43

The illustration shows total internal reflection taking place in apeice of glass. The index of refraction of this glass: $The illustration shows total internal reflection taking place in apeice of glass. The index of refraction of this glass:$

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Question 44

Consider: radio waves (r), visible light (v), infrared (i), x-rays (x), and ultraviolet (u). In order of increasing frequency, they are:

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Question 45

A sinusoidal electromagnetic wave with an electric field amplitude of 100 V/m is incident normally on a surface with an area of 1 cm² and is completely absorbed. The energy absorbed in 10 s is:

(Multiple Choice)

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Question 46

Polarization experiments provide evidence that light is:

(Multiple Choice)

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Question 47

The electric field in unpolarized light:

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Question 48

Evidence that electromagnetic waves carry momentum is:

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Question 49

An electromagnetic wave is transporting energy in the negative y direction. At one point and one instant the magnetic field is in the positive x direction. The electric field at that point and instant is:

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Question 50

The critical angle for total internal reflection at a diamond-air interface is 25 $\degree$ . Suppose light is incident at an angle of $\theta$ with the normal. Total internal reflection will occur if the incident medium is:

(Multiple Choice)

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Question 51

If n_water = 1.33, what is the angle of refraction for the ray shown? $If n<sub>water</sub> = 1.33, what is the angle of refraction for the ray shown?$

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Question 52

A ray of light passes obliquely through a plate of glass having parallel faces. The emerging ray:

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Question 53

The order of increasing wavelength for blue (b), green (g), red (r), and yellow (y) light is:

(Multiple Choice)

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Question 54

The separation of white light into colors by a prism is associated with:

(Multiple Choice)

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Question 55

If the amplitude of the electric field in a plane electromagnetic wave is 100 V/m then the amplitude of the magnetic field is:

(Multiple Choice)

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Question 56

An unpolarized beam of light has intensity I₀. It is incident on two ideal polarizing sheets. The angle between the axes of polarization of these sheets is $\theta$ . Find $\theta$ if the emerging light has intensity I₀/4:

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Question 57

The dimensions of are:

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Question 58

Light with an intensity of 1 kW/m² falls normally on a surface with an area of 1 cm² and is completely absorbed. The force of the radiation on the surface is:

(Multiple Choice)

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Question 59

The time for a radar signal to travel to the Capital and back, a one-way distance of about 3.8*10⁸ m, is:

(Multiple Choice)

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Question 60

Showing 41 - 60 of 79

Exam 33: Electromagnetic Waves

The rectangular metal tank shown is filled with an unknown liquid. The observer, whose eye is level with the top of the tank, can just see corner E. The index of refraction of this liquid is:

The index of refraction of a substance is:

A clear sheet of polaroid is placed on top of a similar sheet so that their polarizing axes make an angle of 30 °\degree° with each other. The ratio of the intensity of emerging light to incident unpolarized light is:

The illustration shows total internal reflection taking place in apeice of glass. The index of refraction of this glass:

Consider: radio waves (r), visible light (v), infrared (i), x-rays (x), and ultraviolet (u). In order of increasing frequency, they are:

A sinusoidal electromagnetic wave with an electric field amplitude of 100 V/m is incident normally on a surface with an area of 1 cm2 and is completely absorbed. The energy absorbed in 10 s is:

Polarization experiments provide evidence that light is:

The electric field in unpolarized light:

Evidence that electromagnetic waves carry momentum is:

An electromagnetic wave is transporting energy in the negative y direction. At one point and one instant the magnetic field is in the positive x direction. The electric field at that point and instant is:

The critical angle for total internal reflection at a diamond-air interface is 25 °\degree° . Suppose light is incident at an angle of θ\thetaθ with the normal. Total internal reflection will occur if the incident medium is:

If nwater = 1.33, what is the angle of refraction for the ray shown?

A ray of light passes obliquely through a plate of glass having parallel faces. The emerging ray:

The order of increasing wavelength for blue (b), green (g), red (r), and yellow (y) light is:

The separation of white light into colors by a prism is associated with:

If the amplitude of the electric field in a plane electromagnetic wave is 100 V/m then the amplitude of the magnetic field is:

An unpolarized beam of light has intensity I0. It is incident on two ideal polarizing sheets. The angle between the axes of polarization of these sheets is θ\thetaθ . Find θ\thetaθ if the emerging light has intensity I0/4:

The dimensions of are:

Light with an intensity of 1 kW/m2 falls normally on a surface with an area of 1 cm2 and is completely absorbed. The force of the radiation on the surface is:

The time for a radar signal to travel to the Capital and back, a one-way distance of about 3.8*108 m, is:

Measurement

Motion Along a Straight Line

Vector

Motion in Two and Three Dimensions

Force and Motion I

Force and Motion II

Kinetic Energy and Work

Potential Energy and Conservation of Energy

Center of Mass and Linear Momentum

Rotation

Rolling, Torque, and Angular Momentum

Equilibrium and Elasticity

Gravitation

Fluids

Oscillations

Waves I

Waves II

Temperature, Heat, and the First Law of Thermodynamics

The Kinetic Theory of Gases

Entropy and the Second Law of Thermodynamics

Electric Charge

Electric Fields

Gauss Law

Electric Potential

Capacitance

Current and Resistance

Circuits

Magnetic Fields

Magnetic Fields Due to Currents

Induction and Inductance

Electromagnetic Oscillations and Alternating Current

Maxwells Equations; Magnetism of Matter

Images

Interference

Diffraction

Relativity

Photons and Matter Waves

More About Matter Waves

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Conduction of Electricity in Solids

Nuclear Physics

Energy From the Nucleus

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A clear sheet of polaroid is placed on top of a similar sheet so that their polarizing axes make an angle of 30 $\degree$ with each other. The ratio of the intensity of emerging light to incident unpolarized light is:

The illustration shows total internal reflection taking place in apeice of glass. The index of refraction of this glass: $The illustration shows total internal reflection taking place in apeice of glass. The index of refraction of this glass:$

A sinusoidal electromagnetic wave with an electric field amplitude of 100 V/m is incident normally on a surface with an area of 1 cm² and is completely absorbed. The energy absorbed in 10 s is:

The critical angle for total internal reflection at a diamond-air interface is 25 $\degree$ . Suppose light is incident at an angle of $\theta$ with the normal. Total internal reflection will occur if the incident medium is:

If n_water = 1.33, what is the angle of refraction for the ray shown? $If n<sub>water</sub> = 1.33, what is the angle of refraction for the ray shown?$

An unpolarized beam of light has intensity I₀. It is incident on two ideal polarizing sheets. The angle between the axes of polarization of these sheets is $\theta$ . Find $\theta$ if the emerging light has intensity I₀/4:

Light with an intensity of 1 kW/m² falls normally on a surface with an area of 1 cm² and is completely absorbed. The force of the radiation on the surface is:

The time for a radar signal to travel to the Capital and back, a one-way distance of about 3.8*10⁸ m, is: