Question

calculate the speed of light in water of refraction index 4.3 given speed of light in air is equal to 3 x 10⁸

solutions
4/3 ×3×10⁸

cross multiply
9×10⁸/4

divide
answer 2.25 ×10⁸
I hope you guys this question is helpful your ​

Answer 1

Answer:

6.9*10^7 is the solution

Explanation:

Solution

we know the relationship between refractive index and speed of light

that is. n=c/v

when n=refractive index

c= speed of light

v= velocity of light in medium

• Given, n= 4.3 and c=3*10^8
• here we need to find velocity of light in medium that "v"
• from the above equation we get v=c/n

putting value values

v=(3*10^8)/4.3

v=.69*10^8

v=6.9*10^7

I hope u guys this answer is helpful.