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: Â Einstein's Photoelectric Equation |
Â 73%
From NCERT
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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: Â De-broglie Wavelength |
Â 87%
From NCERT
NEET - 2015
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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 the same frequency having the same intensity.
Subtopic: Â Photoelectric Effect: Experiment |
Â 85%
From NCERT
AIPMT - 2009
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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: Â Einstein's Photoelectric Equation |
Â 77%
From NCERT
AIPMT - 2004
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In the given graph of the photoelectric experiment, the maximum energy of the emitted photoelectron will be:

 1 $$2$$ eV 2 $$0$$ eV 3 $$4$$ eV 4 $$4$$ J
Subtopic: Â Photoelectric Effect: Experiment |
Â 59%
From NCERT
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The correct graph between the maximum energy of a photoelectron $$\left(K_{max}\right)$$ and the inverse of the wavelength $$\left(\frac{1}{\lambda}\right)$$ of the incident radiation is given by the curve:

 1 $$A$$ 2 $$B$$ 3 $$C$$ 4 None of these
Subtopic: Â Einstein's Photoelectric Equation |
Â 80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

The figure shows different graphs between stopping potential $$V_0$$ 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: Â Photoelectric Effect: Experiment |
Â 80%
From NCERT
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If stopping potential $$V_{0}$$ is plotted versus frequency $$\nu$$ 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 = $$\frac{b}{a}$$ 2 Planck's constant = $$\frac{eb}{a}$$ 3 Planck's constant = $$\frac{a}{b}$$ 4 Planck's constant = $$\frac{ea}{b}$$
Subtopic: Â Photoelectric Effect: Experiment |
Â 74%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

 Assertion (A): 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 (R): Here we cannot apply conservation of linear momentum.

In the light of the above statements choose the correct answer from the options given below:

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 Both (A) and (R) are false.

Subtopic: Â De-broglie Wavelength |
Â 66%
From NCERT
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Given below are two statements:
 Assertion (A): Mass of a moving photon varies inversely to the wavelength. Reason (R): Energy of the particle = Mass$$\times$$(speed of light)2.

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 (A) is false but (R) is true.

Subtopic: Â Particle Nature of Light |
From NCERT
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