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JEE Main Physics Class 12 Dual Nature of Matter and Radiation Part 1 Questions

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Question : 85

Total: 100

Statement -1 : When ultraviolet light is incident on a photocell, its stopping potential is V0 and the maximum kinetic energy of the photoelectrons is Kmax. When the ultraviolet light is replaced by X -rays, both V0 and Km increase.
Statement -2 : Photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light.

Statement -1 is true, Statement -2 is true ; Statement -2 is the correct explanation of Statement -1
Statement -1 is true, Statement -2 is true; Statement -2 is not the correct explanation of Statement -1
Statement -1 is false, Statement -2 is true.
Statement -1 is true, Statement -2 is false.

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