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Atomic Structure

A 100W power source emits green light at a wavelength $\lambda=5000\overset{\circ}{A}$. How many photons per minute are emitted by the source?

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$(A)\;1.5\times 10^{22}$

$(B)\;2\times 10^{21}$

$(C)\;3\times 10^{24}$

$(D)\;2.5\times 10^{21}$

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Atomic Structure practice questions for JEE

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