Q7/10: The de Broglie wavelength of an electron accelerated through a potential difference V is proportional to:
Anonymous Quiz
32%
V
37%
1 / V
21%
1 / sqrt(V)
5%
sqrt(V)
5%
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Q8/10: What is the rest mass of a photon?
Anonymous Quiz
32%
Zero
9%
Infinity
27%
9.1 x 10^-31 kg
18%
1.6 x 10^-27 kg
14%
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Q9/10: The threshold frequency is the minimum frequency of incident light required to:
Anonymous Quiz
13%
Produce maximum kinetic energy
38%
Stop the emission of electrons
25%
Eject photoelectrons with zero kinetic energy
25%
Overcome threshold potential
0%
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Q10/10: If the frequency of incident light is doubled, the stopping potential will:
Anonymous Quiz
18%
Double
18%
Halve
59%
More than double
6%
Less than double
0%
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Every question is a step toward exam success!
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Good luck!
Q1/10: An electron and a proton have the same kinetic energy. Which one has the greater de Broglie wavelength?
Anonymous Quiz
12%
Electron
24%
Proton
47%
Both have same wavelength
18%
Cannot be determined
0%
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Q2/10: The momentum of a photon of wavelength lambda is given by:
Anonymous Quiz
5%
h * lambda
32%
h / lambda
26%
lambda / h
32%
h * c / lambda
5%
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Q3/10: Which of the following phenomena shows the particle nature of light?
Anonymous Quiz
11%
Interference
39%
Diffraction
17%
Polarization
33%
Photoelectric effect
0%
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Q4/10: A particle of mass m is moving with velocity v. Its de Broglie wavelength is:
Anonymous Quiz
5%
h * m * v
40%
h / (m * v)
40%
m * v / h
5%
h * v / m
10%
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😁1
Q5/10: Assertion (A): The work function varies for different metals. Reason (R): Different metals have different atomic structures.
Anonymous Quiz
35%
Both A and R are true, R explains A
18%
Both A and R are true, R does not explain A
18%
A is true, R is false
24%
A is false, R is true
6%
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Q6/10: In the photoelectric effect, if the distance between the light source and metal is increased, stopping potential:
Anonymous Quiz
14%
Increases
45%
Decreases
32%
Remains unchanged
9%
Becomes zero
0%
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Q7/10: The slope of the graph between stopping potential (V0) and frequency (nu) of incident light gives:
Anonymous Quiz
35%
Work function
25%
Planck's constant (h)
15%
h / e
25%
e / h
0%
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Q8/10: The Davisson-Germer experiment successfully establishes:
Anonymous Quiz
15%
Wave nature of light
35%
Particle nature of light
30%
Wave nature of electrons
20%
Particle nature of electrons
0%
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Q9/10: The kinetic energy of a photoelectron predominantly depends on:
Anonymous Quiz
44%
Intensity of light only
20%
Frequency of light only
28%
Both intensity and frequency
8%
Neither intensity nor frequency
0%
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Q10/10: Two photons have the same wavelength. They must invariably have the same:
Anonymous Quiz
31%
Frequency and energy
23%
Velocity and mass
38%
Momentum and kinetic energy
8%
Energy and rest mass
0%
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🎉 Quiz Finished! 🎉
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Next quiz Friday at 20:00
Thank you for participating.
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Next quiz Friday at 20:00
✨ Quiz Time! ✨
Answer today's quiz questions and test your knowledge.
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Every question is a step toward exam success!
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Good luck!
Q1/10: According to Huygens' principle, what does each point on a wavefront act as?
Anonymous Quiz
38%
A secondary source of light
25%
A primary source of light
38%
A point of interference
0%
A point of diffraction
0%
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Q2/10: Which phenomenon proves the transverse nature of light?
Anonymous Quiz
15%
Interference
20%
Diffraction
45%
Polarization
15%
Refraction
5%
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Q3/10: In Young's double-slit experiment, if the distance between the slits is halved, what happens to the fringe width?
Anonymous Quiz
23%
It is halved
36%
It is doubled
23%
It remains the same
14%
It becomes four times
5%
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