Teaching MPPSC Assistant Professor Mock Test Series 2025 Physics Relativity The Relativity of Length
A glass slab having refractive index 2 is moving with velocity \(\frac{\mathrm{c}}{2} \hat{i}\) with respect to lab. A light beam is travelling inside the slab in y-direction. What is speed of light beam as measured in lab frame?
1
\(\frac{\sqrt{7}}{4}\mathrm{c}\)
2
\(\frac{\mathrm{c}}{\sqrt{2}}\)
3
\(\frac{\sqrt{2}\mathrm{c}}{3}\)
4
\(\frac{\mathrm{c}}{2\sqrt{2}}\)