If the radiant energy from the Sun comes in as a plane EM wave of intensity 1340 W/m2, calculate the peak values of E and B.

A) 300 V/m, 10−4 T B) 1000 V/m, 3.35 × 10−6 T C) 225 V/m, 1.60× 10−3 T D) 111 V/m, 3.00 × 10−5 T E) 711 V/m, 2.37 × 10−6 T A) 300 V/m, 10−4 T B) 1000 V/m, 3.35 × 10−6 T C) 225 V/m, 1.60× 10−3 T D) 111 V/m, 3.00 × 10−5 T E) 711 V/m, 2.37 × 10−6 T

A spherical particle of density and 2.00-mm radius is located at the same distance from the Sun as the Earth (RSE = 1.5 × 1011 m, G = 6.67 × 10-11 Nm2/kg2, S = 1365 W/m2, M S = 1.99 × 1030 kg) . If the particle absorbs 100 percent of the sunlight reaching it, the ratio of the force exerted by the solar radiation to the force of gravity exerted on the particle by the Sun is

A) 5.8 × 10−5. B) 0.58. C) 1.0. D) 1.7. E) 1.7 × 104. A) 5.8 × 10−5. B) 0.58. C) 1.0. D) 1.7. E) 1.7 × 104.

Exam 34: Maxwells Equations and Electromagnetic Waves

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Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?

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The correct form of Ampere's law for circuits with gaps in them is

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If the radiant energy from the Sun comes in as a plane EM wave of intensity 1340 W/m², calculate the peak values of E and B.

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A spherical particle of density and 2.00-mm radius is located at the same distance from the Sun as the Earth (RSE = 1.5 × 1011 m, G = 6.67 × 10-11 Nm²/kg2, S = 1365 W/m², M S = 1.99 × 1030 kg) . If the particle absorbs 100 percent of the sunlight reaching it, the ratio of the force exerted by the solar radiation to the force of gravity exerted on the particle by the Sun is

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What should be the height of a dipole antenna (of dimensions 1/4 wavelength) if it is to transmit 1200 kHz radiowaves?

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The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the frequency of the wave?

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What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m²) on a flat black surface?

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Green light has a wavelength of 5.4 × 10−7 m. What is the frequency of this EM-wave in air?

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The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the wavelength of the EM wave?

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Question 10

The Sun radiates energy at a rate of 3.86 × 1026 W. Its radius is 7.0 × 108 m. If the distance from the Earth to the Sun is 1.5 × 1011 m, what is the intensity of solar radiation at the top of the Earth's atmosphere?

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Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1) and 2R (sphere 2) from the Sun, respectively. The ratio of the pressure of solar radiation on sphere 2 to that on sphere 1 is

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Question 12

A 100-kW radio station emits EM waves in all directions from an antenna on top of a mountain. What is the intensity of the signal at a distance of 10 km?

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Question 13

The magnetic field amplitude in an electromagnetic wave in vacuum is related to the electric field amplitude by B =

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What is the average value of the magnitude of the Poynting vector at 1 meter from a 100-watt lightbulb radiating in all directions?

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Question 15

An FM radio station broadcasts at 98.6 MHz. What is the wavelength of the radiowaves?

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When E and B are the amplitudes of the electric and magnetic fields in an electromagnetic wave in vacuum, the total average energy density in the wave is

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Question 17

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the speed of the EM wave?

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Question 18

In the atmosphere, the shortest wavelength electromagnetic waves are called

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Question 19

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. Find the average power per square meter carried by the EM wave.

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Question 20

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Exam 34: Maxwells Equations and Electromagnetic Waves

​Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?

You can raise the temperature of an object with

The correct form of Ampere's law for circuits with gaps in them is

If the radiant energy from the Sun comes in as a plane EM wave of intensity 1340 W/m2, calculate the peak values of E and B.

What should be the height of a dipole antenna (of dimensions 1/4 wavelength) if it is to transmit 1200 kHz radiowaves?

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the frequency of the wave?

What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m2) on a flat black surface?

Green light has a wavelength of 5.4 × 10−7 m. What is the frequency of this EM-wave in air?

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the wavelength of the EM wave?

The Sun radiates energy at a rate of 3.86 × 1026 W. Its radius is 7.0 × 108 m. If the distance from the Earth to the Sun is 1.5 × 1011 m, what is the intensity of solar radiation at the top of the Earth's atmosphere?

Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1) and 2R (sphere 2) from the Sun, respectively. The ratio of the pressure of solar radiation on sphere 2 to that on sphere 1 is

A 100-kW radio station emits EM waves in all directions from an antenna on top of a mountain. What is the intensity of the signal at a distance of 10 km?

The magnetic field amplitude in an electromagnetic wave in vacuum is related to the electric field amplitude by B =

What is the average value of the magnitude of the Poynting vector at 1 meter from a 100-watt lightbulb radiating in all directions?

An FM radio station broadcasts at 98.6 MHz. What is the wavelength of the radiowaves?

When E and B are the amplitudes of the electric and magnetic fields in an electromagnetic wave in vacuum, the total average energy density in the wave is

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the speed of the EM wave?

In the atmosphere, the shortest wavelength electromagnetic waves are called

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. Find the average power per square meter carried by the EM wave.

Getting Started

One-Dimensional Motion

Vectors

Two- and Three-Dimensional Motion

Newtons Laws of Motion

Applications of Newtons Laws of Motion

Gravity

Conservation of Energy

Energy in Nonisolated Systems

Systems of Particles and Conservation of Momentum

Collisions

Rotation I: Kinematics and Dynamics

Rotation II: a Conservation Approach

Static Equilibrium, Elasticity, and Fracture

Fluids

Oscillations

Traveling Waves

Superposition and Standing Waves

Temperature, Thermal Expansion, and Gas Laws

Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

Entropy and the Second Law of Thermodynamics

Electric Forces

Electric Fields

Gausss Law

Electric Potential

Capacitors and Batteries

Current and Resistance

Direct Current Dc Circuits

Magnetic Fields and Forces

Gausss Law for Magnetism and Amperes Law

Faradays Law of Induction

Inductors and Ac Circuits

Diffraction and Interference

Applications of the Wave Model

Reflection and Images Formed by Reflection

Refraction and Images Formed by Refraction

Relativity

Filters

Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?

If the radiant energy from the Sun comes in as a plane EM wave of intensity 1340 W/m², calculate the peak values of E and B.

What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m²) on a flat black surface?