1.

The energy of a photon is calculated by      [Pb. PMT 2000]

A.      \[E=h\nu \]        
B.      \[h=E\nu \]
C.      \[h=\frac{E}{\nu }\]       
D.      \[E=\frac{h}{\nu }\]
Answer» B.      \[h=E\nu \]


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