A source of monochromatic radiation wavelength 400 nm provides 1000 J of energy in 10 seconds. When it falls on sodium, electrons are ejected per second. Assume that wavelength 400 nm is sufficient f

Question

A source of monochromatic radiation wavelength 400 nm provides 1000 J of energy in 10 seconds. When it falls on sodium,  electrons are ejected per second. Assume that wavelength 400 nm is sufficient for ejection of electron from the surface of sodium metal. The value of  is  (nearest integer).

[ Js]

Canvas Classes · Accepted Answer

W

J

Per official answer key:

Answer: 2

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