Question

94. When radiation of wavelength λ is

incident on a metallic surface, the stopping

potential is 4.8 volts. If the same surface is

illuminated with radiation of double the

wavelength, then the stopping potential

becomes 1.6 volts. Then the threshold

wavelength for the surface is

(1) 2λ (2) 4λ

(3) 6λ (4) 8λ​

Answer 1

Explanation:

कांट अंडरस्टैंड योर हैंड राइटिंग सॉरी ब्रो