Light of wavelength lambda shines on a m...

Light of wavelength `lambda` shines on a metal surface with initail X and the metal emit Y electron per second of average Z what will happen to Y and Z if X is doubled ?

y will be doubled and z will become half

y will remains same and z will be doubled

Both y and z will be doubled

y will be doubled but z will remain same

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The correct Answer is:

no of photo electrons ejected `alpha` intensity of radiation but KE is independent of intensity of radiation.

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