1.

By photoelectric effect, Einstein, proved         [MP PET 2003]

A.            \[E=hv\]                                 
B.            \[K.E.=\frac{1}{2}m{{v}^{2}}\]
C.            \[E=m{{c}^{2}}\]                 
D.            \[E=\frac{Rh{{c}^{2}}}{{{n}^{2}}}\]
Answer» B.            \[K.E.=\frac{1}{2}m{{v}^{2}}\]


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