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>>Class 12
>>Physics
>>Dual Nature of Radiation and Matter
>>Experimental Study of Photoelectric Effect
>> $The photoelectric current in a photocell$

Question

Assertion

The photoelectric current in a photocell increases with the increases wavelength of the incident radiation

Reason

The energy of the incident radiation increases with the increases in frequency of incident radiation.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Assertion is correct but Reason is incorrect

Both Assertion and Reason are incorrect

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Solution

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Correct option is D)

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The maximum kinetic energy of electrons emitted in the photoelectric effect is linearly dependent on the ________ of the incident radiation.

Medium

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A photoelectric cell is connected to a source of variable potential difference, connected across it and the photoelectric current resulting $(μ A)$ is plotted against the applied potential difference (V). The graph in the broken line represents one for a given frequency and intensity of the incident radiation. If the frequency is increased and the intensity is reduced, then which of the following graphs of unbroken line represents the new situation?

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Energy of electrons can be increased by allowing them

Easy

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The curve between current (i) and potential difference (V) for a photocell will be

Medium

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Suppose the wavelength of the incident light in photoelectric effect experiment is increased from $3000 A^{o}$ to $3040 A^{o}$ . Find the corresponding change in the stopping potential. [Take the product $h c = 12.4 \times 1 0^{- 7} V m]$

Easy

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Dual Nature of Radiation and Matter

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JEE Mains Questions

The photoelectric current in a photocell increases with the increases wavelength of the incident radiation

The energy of the incident radiation increases with the increases in frequency of incident radiation.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Assertion is correct but Reason is incorrect

Both Assertion and Reason are incorrect