Number of photons of equal energy emitted per second by a 6 mW laser source operating at wavelength 663 nm is.…

Question

Number of photons of equal energy emitted per second by a **$$6 \, 	ext{mW}$$** laser source operating at wavelength **$$663 \, 	ext{nm}$$** is _____.
(Given: **$$h=6.63	imes10^{-34} \, 	ext{J}\cdot	ext{s}$$** and **$$c=3	imes10^8 \, 	ext{m/s}$$**)

Accepted Answer

D. $$2	imes10^{16}$$

Answer

A. $$10	imes10^{15}$$

Answer

B. $$5	imes10^{16}$$

Answer

C. $$5	imes10^{15}$$

Answer & step-by-step solution

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