Q11 of 69 Page 363

A point source of light is used in a photoelectric effect. If the source is removed farther from the emitting metal, the stopping potential

As the source is moved farther away from the emitting metal, the intensity of light decreases. Since we know that the stopping potential is independent of intensity of light, it remains constant.

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9

If the frequency of light in a photoelectric experiment is doubled, the stopping potential will

 10

The frequency and intensity of a light source are both doubled. Consider the following statements.

(A) The saturation photocurrent remains almost the same.


(B) The maximum kinetic energy of the photoelectrons is doubled.


 12

A point source causes photoelectric effect from a small metal plate. Which of the following curves may represent the saturation photocurrent as a function of the distance between the source and the metal?


 13

A nonmonochromatic light is used in an experiment on photoelectric effect. The stopping potential