Physicsmedium · Past Paper
Calculate the refractive index of a medium if the speed of light in that medium is 2 x 10^8 m/s.
A1.0
B1.5
C2.0
D1.33
✓ Correct Answer: B — 1.5
Refractive index (n) = c/v = (3 x 10^8) / (2 x 10^8) = 1.5.
Share this question
More from Physics
- Potential energy (PE) formula is:
- Sound intensity ________ with distance from the source.
- The resistivity of a certain material is 0.1 Ohm-meter. What is its conductivity?
- The work-energy theorem states that work done on a body is equal to change in its:
- A generator produces a voltage of 240V and delivers a current of 50A. If the resistance of the transmission line is 0.5 Ohm, how much power is lost in the line?