For a photoelectric cell, the graph showing the variation of stopping potential \((V_{0})\) with the frequency \((f)\) of incident light is best represented by:
 
1. 2.
3. 4.
Subtopic:  Einstein's Photoelectric Equation |
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Which of the following figures represent the variation of the particle momentum and the associated de-Broglie wavelength?

1. 2.
3. 4.

Subtopic:  De-broglie Wavelength |
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The figure shows a plot of photocurrent versus anode potential for a photosensitive surface for three different radiations. Which one of the following is a correct statement? 
 
1. Curves a and b represent incident radiations of different frequencies and different intensities.
2. Curves a and b represent incident radiation of the same frequency but of different intensities.
3. Curves b and c represent incident radiation of different frequencies and different intensities.
4. Curves b and c represent incident radiations of same frequency having the same intensity.
Subtopic:  Photoelectric Effect: Experiment |
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According to Einstein's photoelectric equation, the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is :-

1. 2.
3. 4.
Subtopic:  Einstein's Photoelectric Equation |
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In the given graph of the photoelectric experiment, the maximum energy of emitted photoelectron will be:

                           

1.  2 eV 

2.  0 eV

3.  4 eV

4.  4J

Subtopic:  Photoelectric Effect: Experiment |
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The correct graph between the maximum energy of a photoelectron and the inverse of the wavelength of the incident radiation is given by the curve:

         

1.  A

2.  B

3.  C

4.  None of these

Subtopic:  Einstein's Photoelectric Equation |
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The figure shows different graphs between stopping potential V0 and frequency v for photosensitive surfaces of cesium, potassium, sodium, and lithium. The plots are parallel. Which of the following about their work function is correct?

 

1.  (i) > (ii) > (iii) > (iv)

2.  (i) > (iii) > (ii) > (iv)

3.  (iv) > (iii) > (ii) > (i)

4.  (i) = (iii) > (ii) = (iv)

Subtopic:  Photoelectric Effect: Experiment |
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If stopping potential V0 is plotted versus frequency (v) in an experiment of the photoelectric effect, the graph as shown in the diagram is obtained. Then: (e is an electronic charge)

1.  Planck's constant =ba

2.  Planck's constant =eba

3.  Planck's constant =ab

4.  Planck's constant =eab

Subtopic:  Photoelectric Effect: Experiment |
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Assertion: A particle of mass M at rest decay into two particles of masses m1 and m2, having non-zero velocities will have ratio of de-Broglie wavelengths unity.
Reason: Here we cannot apply conservation of linear momentum.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but the reason is false.
4. Both assertion and reason are false.


 
 
Subtopic:  De-broglie Wavelength |
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Assertion: Mass of a moving photon varies inversely to the wavelength.
Reason: Energy of the particle = Mass\(\times\)(speed of light)2.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.

 
Subtopic:  Particle Nature of Light |
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