Q10/10: A plane wavefront incident on a convex lens emerges as:
Anonymous Quiz
13%
A plane wavefront
13%
A cylindrical wavefront
61%
A spherical converging wavefront
13%
A spherical diverging wavefront
0%
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✨ Quiz Time! ✨
Answer today's quiz questions and test your knowledge.
Every question is a step toward exam success!
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Good luck!
Answer today's quiz questions and test your knowledge.
Every question is a step toward exam success!
FREE Premium PDFs Available Here: acadpills.com/premium
Good luck!
Q1/10: The minimum energy required to eject an electron from a metal surface is called:
Anonymous Quiz
28%
Kinetic energy
32%
Work function
16%
Ionization energy
20%
Threshold energy
4%
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Q2/10: The work function of a metal primarily depends on:
Anonymous Quiz
35%
Nature of the metal and its surface
27%
Wavelength of incident light
35%
Intensity of incident light
4%
Time of illumination
0%
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Q3/10: According to Einstein's photoelectric equation, the maximum kinetic energy of emitted photoelectrons is:
Anonymous Quiz
36%
h * nu + work function
36%
h * nu - work function
18%
work function - h * nu
9%
h * nu / work function
0%
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Q4/10: If the intensity of incident light increases, the number of emitted photoelectrons:
Anonymous Quiz
52%
Increases
17%
Decreases
30%
Remains the same
0%
Becomes zero
0%
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Q5/10: The stopping potential in a photoelectric experiment depends linearly on:
Anonymous Quiz
41%
Intensity of incident light
45%
Frequency of incident light
9%
Angle of incidence
5%
Distance of source
0%
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Q6/10: Assertion (A): Photoelectric effect demonstrates the particle nature of light. Reason (R): Light interacts with matter in discrete quanta.
Anonymous Quiz
44%
Both A and R are true, R explains A
19%
Both A and R are true, R does not explain A
25%
A is true, R is false
13%
A is false, R is true
0%
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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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🎉 Quiz Finished! 🎉
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Next quiz today at 20:00 (in 23h 51m)
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Next quiz today at 20:00 (in 23h 51m)
✨ Quiz Time! ✨
Answer today's quiz questions and test your knowledge.
Every question is a step toward exam success!
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Good luck!
Answer today's quiz questions and test your knowledge.
Every question is a step toward exam success!
FREE Premium PDFs Available Here: acadpills.com/premium
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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