NEET Questions Solved

A beam of light of wavelength λ and with illumination L falls on a clean surface of sodium. If N photoelectrons are emitted each with kinetic energy E, then 
(a) N ∝ L and E ∝ L                    (b) N ∝ L and E1λ
(c) Nλ and E ∝ L                    (d) N1λ and E1L

(b) Number of photons emitted is proportional to the intensity. Also hcλ=W0+E

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