Question

speed of light in water is 2.25 × 10^8 m/s if a light ray goes from air to water, calculate the refraction index of water.​

Answer 1

Answer:-

• Speed of light in water=v=2.25×10^8m/s
• Speed of light in air=C=3×10^8m/s
• $\sf n_w=?$

We know that

$\boxed{\sf n=\dfrac{C}{V}}$

$\\ \sf\longmapsto n_w=\dfrac{3\times 10^8}{2.25\times 10^8}$

$\\ \sf\longmapsto n_w=\dfrac{3}{2.25}$

$\\ \sf\longmapsto n_w=1.33$

Answer 2

Answer:

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