Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Optics Refraction and Reflection
The wavelength of a light in a medium is 400 nm and the frequency of the light is 3 x 1014 Hz. Find the refractive index of light in that medium.
1
1.5
2
2.5
3
1.33
4
More than one of the above
5
None of the above