Question (16–18) has Statement - 1 and Statement - 2. Of the four choices given after the statements, choose the one that best describes these statements.

Statement - 1: When ultraviolet light is incident on a photocell, its stopping potential is V0 and the maximum kinetic energy of the p

Question

Question (16–18) has Statement - 1 and Statement - 2. Of the four choices given after the statements, choose the one that best describes these statements.

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 Kmax increase.
Statement - 2: Photoelectrons are emitted with speeds ranging from zero to a maximum value because the range of frequencies present in the incident light.

Accepted Answer

Statement -1 is true, Statement -2 is false.. Statement -1 accurately describes the behavior of photoelectrons when different types of light are used, as both the stopping potential and maximum kinetic energy increase with X-rays. However, Statement -2 incorrectly suggests that the range of speeds of photoelectrons is due to varying frequencies in the incident light, which is not the case for monochromatic light.

Solution

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