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Chapter 1 - Electric Current, Ohms Law and Kirchhoffs Laws

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Chapter 2 - Magnetic Effects of Electric Current and Measuring Instruments

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Chapter 3 - Electromagnetic Induction and AC Dynamo and Transformer

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Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 2: The Photoelectric Effect, Compton Scattering and De Broglie Wavelength — Picture questions (exam style)

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  • Questions count: 19
  • Passing grade: 60%
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1.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
6.76 eV
5.60 eV
2.80 eV
4.14×10−15 eV
2.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
11.3 eV
9.40 eV
4.70 eV
4.14×10−15 eV
3.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
5.79 eV
4.14×10−15 eV
2.40 eV
4.80 eV
4.
A photon of wavelength 2.00×10−11 m is scattered through 45° by a free electron. What is the scattered wavelength?
A photon of wavelength 2.00×10⁻¹¹ m is scattered through 45° by a free electron. What is the scattered wavelength?
1.93×10−11 m
2.07×10−11 m
2.00×10−11 m
2.24×10−11 m
5.
What stopping potential is needed for incident light of frequency 1.13×1015 Hz?
What stopping potential is needed for incident light of frequency 1.13×10¹⁵ Hz?
1.08 V
4.68 V
1.73×10−19 V
3.60 V
6.
A photon of wavelength 2.00×10−11 m is scattered through 90° by a free electron. What is the scattered wavelength?
A photon of wavelength 2.00×10⁻¹¹ m is scattered through 90° by a free electron. What is the scattered wavelength?
1.76×10−11 m
3.90×10−11 m
2.24×10−11 m
2.00×10−11 m
7.
What stopping potential is needed for incident light of frequency 1.87×1015 Hz?
What stopping potential is needed for incident light of frequency 1.87×10¹⁵ Hz?
5.52×10−19 V
3.45 V
7.75 V
4.30 V
8.
A photon of wavelength 2.00×10−11 m is scattered through 30° by a free electron. What is the scattered wavelength?
A photon of wavelength 2.00×10⁻¹¹ m is scattered through 30° by a free electron. What is the scattered wavelength?
2.24×10−11 m
1.97×10−11 m
2.00×10−11 m
2.03×10−11 m
9.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
4.14×10−15 eV
9.89 eV
4.10 eV
8.20 eV
10.
What stopping potential is needed for incident light of frequency 7.20×1014 Hz?
What stopping potential is needed for incident light of frequency 7.20×10¹⁴ Hz?
0.984 V
2.00 V
2.98 V
1.57×10−19 V
11.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
5.20 eV
2.60 eV
6.27 eV
4.14×10−15 eV
12.
What stopping potential is needed for incident light of frequency 1.54×1015 Hz?
What stopping potential is needed for incident light of frequency 1.54×10¹⁵ Hz?
6.38 V
3.18 V
5.09×10−19 V
3.20 V
13.
What stopping potential is needed for incident light of frequency 1.40×1015 Hz?
What stopping potential is needed for incident light of frequency 1.40×10¹⁵ Hz?
4.64×10−19 V
2.90 V
5.80 V
5.05 V
14.
A photon of wavelength 1.00×10−12 m is scattered through 180° by a free electron. What is the scattered wavelength?
A photon of wavelength 1.00×10⁻¹² m is scattered through 180° by a free electron. What is the scattered wavelength?
-3.85×10−12 m
1.00×10−12 m
3.43×10−12 m
5.85×10−12 m
15.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
5.00 eV
4.14×10−15 eV
2.50 eV
6.03 eV
16.
What stopping potential is needed for incident light of frequency 9.60×1014 Hz?
What stopping potential is needed for incident light of frequency 9.60×10¹⁴ Hz?
2.84×10−19 V
1.78 V
3.98 V
2.20 V
17.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
4.60 eV
4.14×10−15 eV
2.30 eV
5.55 eV
18.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
4.14×10−15 eV
3.30 eV
6.60 eV
7.96 eV
19.
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
The graph shows max kinetic energy of photoelectrons against frequency for a metal. What is the work function?
5.07 eV
4.14×10−15 eV
4.20 eV
2.10 eV
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