If c is the velocity of light in free space, the time taken by light to travel

If c is the velocity of light in free space, the time taken by light to travel a distance x in a medium refractive index μ is

Options

(a) x/c
(b) μx/c
(c) x/μc
(d) c/μx

Correct Answer:

μx/c

Explanation:

Velocity of light in a medium v = c / μ
We known time taken t = x / v
⇒ t = x / (c/μ) = μx / c

admin:

Related Questions

  1. Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies
  2. In an ac circuit an alternating voltage e = 200 √2 sin 100 t volts is connected
  3. The value of Poisson’s ratio lies between
  4. Energy of all molecules of a monoatomic gas having a volume V and pressure P is 3PV/2.
  5. A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH