Light of velocity 3 x 10 8 ms -1 is incident on a material of
PHYSICS
JAMB 1997
Light of velocity 3 x 108ms-1 is incident on a material of reflective of index n. If the velocity of light is reduced to 2.4 x 108ms-1 in the material, what is n?
- A. 2.33
- B. 2.25
- C. 1.33
- D. 1.25
Correct Answer: D. 1.25
Explanation
n = \(\frac{3 \times\ 10^8}{2.4 \times\ 10^8}\)
n = 1.25
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *