4.33 x 108ms-1
4.00 x 108ms-1
2.25 x 108ms-1
1.33 x 108ms-1
Correct answer is C
\(_an_w = \frac{4}{3} = \frac{\text{speed of light in air}}{\text{speed of light in water}}\)
\(\frac{4}{3} = \frac{3 \times 10^8}{x}\)
x = \(\frac{9 \times 10^4}{4}\)
= 2.25 x 108m/s
The terminals of a battery of emf 24.0 V and internal resistance of 1.0 Ω is connected to an e...
The quantity of electric charge stored in a capacitor is measured in ...
an electric motor is a machine that converts ...
Efficiency of conduction in liquids and gases compared to solids is ...
If a projectile has maximum range of 36m, find the speed of projection (Take g = 9.8m/s2)...