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Snell's Law

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With the help of a ray diagram, state what is meant by refraction of light. State Snell's law for refraction oflight and also express it mathematically. The refractive index of air with respect to glass is 2/3 and the refractive index of water with respect to air is 4/3. If the speed of light in glass is 2x 10^{}m/s, find the speed of light in (a) air, (b) water.

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Similar questions

Q. A) State what is meant by the refraction of light. State Snell's law for refraction of light and also express it mathematically.

B) The refractive index of water with respect to air is

\frac{4}{3}

. If the speed of light in air is

3 \times 10^{8}

m/s, find the speed of light in water.

Q. The refractive indexes of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light is 2 x 10^8 m/s, find the speed of light in water.

Q. The refractive index of water and glass are 1.2 and 1.5 with respect to air, respectively. Calculate the refractive index of glass with respect to water. (Take speed of light in air, c = 3 × 108 m/s)

Q. (a) Write the relation between object distance

(u)

, image distance

(v)

and focal distance

(f)

of a spherical lens.

(b) What is magnification?
(c) The refractive index of glass with respect to air is

\frac{3}{2}

and the refractive index of water with respect to air is

\frac{4}{3}

. If the speed of light in air is

3 \times 10^{8} m / s

, find the speed of light in (i) glass, (ii) water.

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