Question

Absolute refractive index of a substance is

A) speed of light in air / speed of light in the medium
B) speed of light in water/ speed of light in medium
C) speed of light in medium / speed of light in air
D) speed of light in medium / speed of light in water

Answer 1

Explanation:

a) is the correct Answer

The main scale reading while measuring the thickness

of a metal bob using vernier calipers is 2cm and the

vernier scale coincidence is 4. Find the radius of the

metal bob.

pls help me

Answer 2

Answer:

A is correct answer...