Which of the following is the characteristic of a black body?
Quantum Mechanics
Quiz
•
Physics
•
1st - 2nd Grade
•
Hard
Mihir Hota
Used 7+ times
FREE Resource
25 questions
Show all answers
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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