The speed of light in air is 3 x 10⁸ms^-1. If the refractive index of light from air-to-water is \(\frac{4}{3}\), then which of the following is the correct value of the speed of light in water?

laoluwa

10 years ago

the correct answer is b

Myschool Paul

10 years ago

Thanks for your contributions. The question has been modified.

CycloVictolis

10 years ago

seems they are even confused in their solving...

4/3=3*10^8/w



w=3*3*10^8/4..9*10^8/4...2.25*10^8..which is B..

Adannewi

10 years ago

the correct answer is B



Speed in air/ speed in water=density

:. 4/3 x 3x10^8 / Speed in water(v)

:;.V=3x3x10^8 /4 ==2.25 x 10^8...

Amos A

10 years ago

d answer is A.

4/3=3×10^8

3 Cancel 3

4×10^8 m/s

so d Option is A