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in Physics by (69.1k points)

In a photoelectric experiment, the wavelength of the light incident on a metal is changed from 300 nm to 400 nm. The decrease in the stopping potential is close to : hc/e = 1240 nm- V)

(1)   1.5 V

(2)   1.0 V

(3)   2.0 V

(4)   0.5 V

1 Answer

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by (73.1k points)
selected by
 
Best answer

Correct option  (2) 1.0 V

Explanation:

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