A) 1.5
B) 0.42
C) 2.4
D) 3.75
Correct Answer: C
Solution :
The refractive index of a material is the factor by which the phase velocity of electromagnetic radiation is slowed in that material, relative to its velocity in vacuum. \[\therefore \] \[\mu =\frac{u}{v}\] Given, \[\mu =3\times {{10}^{8}}m/s\], \[v=1.25\times {{10}^{8}}m/s\] \[\therefore \] \[\mu =\frac{3\times {{10}^{8}}}{1.25\times {{10}^{8}}}=2.4\]You need to login to perform this action.
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