1.

Wavelength of green light is                                  [BHU 1982]

A.                 \[400-500m\mu \]
B.                 \[500-550m\mu \]
C.                 \[660-720m\mu \]
D.                 \[720-800m\mu \]
Answer» C.                 \[660-720m\mu \]


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