Explain why the existence of a frequency below which photoelectrons are not emitted.

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Answer 1

Question

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

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3.63 • Leaping the River II. A physics professor did daredevil stunts in his spare time. His last stunt was an attempt to jump across a river on a motorcycle (Fig. P3.63). The takeoff ramp was inclined at 53.0°, the river was 40.0 m wide, and the far bank was 15.0 m lower than the top of the ramp. The river itself was 100 m below the ramp. Ignore air resistance. (a) What should his speed have been at the top of the ramp to have just made it to the edge of the far bank? (b) If his speed was only half the value found in part (a), where did he land? Figure P3.63 53.0° 100 m 40.0 m→ 15.0 m

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Answer 2

Question

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

Answer 6

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.

Answer 7

Chapter 26, Problem 1QAP

To determine

Explain why the existence of a frequency below which photoelectrons are not emitted.

Answer 8

Expert Solution & Answer

Explanation of Solution

The electromagnetic field is quantized, and it exists in the form of small packets called a photon

Quantized energy of the photon,E =hf=hcλ.

Here, h is Plank's constant, f is the frequency of wave, ( is the wavelength of photon and c is the speed of light..

A free moving electron in metal does not eject out of the surface of metal on their own. The minimum amount of energy necessary to take a free electron out of metal is called work function.

Work function,ϕ0=hfo=hcλo.

Here, h is Plank's constant, f_o is threshold frequency of the wave, (_o is threshold wavelength of photon and c is the speed of light..

When frequency of falling light is less than threshold frequency, electron will not eject from metal and falling light on the surface can reflect, absorb or transmit.