JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
As shown in the figure, after passing through the medium \(1\). The speed of light \(v _{2}\) in medium \(2\) will be\(.....\times 10^{8}\,ms ^{-1}\) \(\left(\text { Given } c =3 \times 10^{8} ms ^{-1}\right)\)
- A \(1.0\)
- B \(0.5\)
- C \(1.5\)
- D \(3.0\)
Answer & Solution
Correct Answer
(A) \(1.0\)
Step-by-step Solution
Detailed explanation
\(\frac{\mu_{2}}{\mu_{ air }}=\frac{ C }{ V _{2}}\) \(\therefore \frac{\sqrt{\mu_{ r _{2}} \varepsilon_{ r _{2}}}}{(1)}=\frac{ C }{ V _{2}}\) \(\therefore \sqrt{(1)(9)}=\frac{C}{v_{2}}\) \(\therefore v _{2}=\frac{ C }{3}\)
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