1.

The wavelength of light visible to eye is of the order of [CPMT 1982, 84]

A.            \[{{10}^{-2}}\,\,m\]           
B.            \[{{10}^{-10}}\] m
C.            1 m                                           
D.            \[6\times {{10}^{-7}}\]m
Answer» E.


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