1.

A light wave has a frequency of \[4\times {{10}^{14}}\]Hz and a wavelength of \[5\times {{10}^{-7}}\] meters in a medium. The refractive index of the medium is                                                                    [MP PMT 1989]

A.            1.5 
B.            1.33
C.            1.0 
D.            0.66
Answer» B.            1.33


Discussion

No Comment Found

Related MCQs