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Quantum Mechanics

Authored by Mihir Hota

Physics

1st - 2nd Grade

Used 7+ times

Quantum Mechanics
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25 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following is the characteristic of a black body?

A perfect absorber but an imperfect radiator

A perfect radiator but an imperfect absorber

A perfect radiator and a perfect absorber

A perfect conductor

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is Compton shift?

Shift in frequency

Shift in charges

Shift in radiation

Shift in wavelength

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Compton shift depends on which of the following?

Incident radiation

Nature of scattering substance

Angle of scattering

Amplitude of frequency

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

As the wavelength of the radiation decreases, the intensity of the black body radiations ____________

Increases

Decreases

First increases then decrease

First decreases then increase

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased?

The value of saturation current increases

No effect

The value of stopping potential increases

The value of stopping potential decreases

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is the time lag between the incidence of photons and the ejection of photoelectrons?

Greater than 10-5 s

Between 10-5 s and 10-9 s

Less than 10-9 s

1 second

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

How does the intensity affect the photoelectric current?

As intensity increases, the photoelectric effect increases

As the intensity increases, the photoelectric effect decreases

As the intensity decreases, the photoelectric effect becomes twice

No effect

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