Wavelength in glass for red light = λ gr = 4000 Å, Wavelength in airĪssuming the refractive index for both colour is sameĪ beam of red light (7000 Å) is passing from air into a Given: Wavelength in air for red light = λ ar = 6400 Å, If the wavelength of the violet light in air is 4400 Å. in air has a wavelength ofĤ000 Å in glass. Of light in first medium is 2 x 10 8 m/s and in second Given: Refractive index of first medium = μ 1 =ġ.5, Refractive index of second medium = μ 2 =ġ.7, Speed of light in air = c a = 3 x 10 8 m/s, The refractive indices of two media are 1.5 and 1.7.Ĭalculate the velocity of light in these two media. Given: SWavelength in water = λ w = 4000 Å, Is 2500 Å Find the refractive index of glass w.r.t. The wavelength of light in water is 4000 Å and in the glass =? The speed of light in diamond = c d =?, RefractiveĪns: Speed of light in water is 2.25 x 10 8 m/s and that in diamond is 1.25 x 10 8 m/s and Refractive index of diamond w.r.t. Index for diamond = μ d = 2.4, Speed of light in air = c a Given: Refractive index for water = μ w = 4/3 = 1.33, Refractive From these results calculate the refractive index of diamond w.r.t. Calculate the speed of light in water and inĭiamond. The refractive indices of water and diamond with respect toĪir are 4/3 and 2.42 respectively. glycerine is given byĪns: Speed of light in glycerine is 2.143 x 10 8 m/s and that in diamond is 1.25 x 10 8 m/s, Refractive index of diamond w.r.t. of water = μ w =Ĭ g =? The speedof light in diamond = c d =?, Refractive Given: Refractive index for glycerine = μ g =ġ.4, Refractive index for diamond = μ d = 2.4, Speed of From these results calculate the refractive index of diamond Calculate the speed of light in glycerineĪnd in diamond. The refractive indices of glycerine and diamond with respect M/s, Speed of light in air = c a = 3 x 10 8 m/s, Given: Speed of light in diamond = c d = 1.25 x 10 8 air isġ.33. Speed of light in air is 3 x 10 8 m/s The velocity of light in diamond is 1.25 x 10 8 m/s.įind the refractive index of diamond w.r.t. Given: Speed of light in air = c a = 3 x 10 8 m/s, Speed of light in diamond = c d = 1.4 x 10 8 m/s, Refractive index of medium = 1.5 The speed of light in air is 3 x 10 8 m/s and that Given: Wavelength in glass = λ g = 4400 Å, Refractive Is its wavelength in air, if refractive index of glass is 1.5? The wavelength of a beam of light in glass is 4400 Å. M = 5 x 10 -7 m, Refractive index of medium = 1.5 What willīe its wave number in a medium of R.I. The wavelength of monochromatic light is 5000 A.U. Given: Frequency in air = ν a = 14 x 10 14 Hz, Velocity of light in air = c a = 3 x 10 8 m/s What is the wave number of a beam of light in air if itsįrequency is 14 x 10 14Hz? c = 3 x 10 8 m/s. Wave length in air = λ a = 1/Wave number in Given: Wave number in air = 2.5 x 10 6 per The wave number of beam of light in air is 2.5 x 10 6 Refraction = 19 O28’ and angle of deviation = 10 o32’ Given: Angle of incidence = i = 30 o, Refractiveįind: Angle of refraction = r =? Angle of Refraction = 19 O28’ and velocity of light in glass = 2 x 10 8Ī plane wavefront is made incident at an angle of 30° on the Index = μ = 1.5, Velocity of light in air = c a = 3 x 10 8 m/s Given: Glancing angle = i g = 60 o, Refractive Velocity of light in air 1.5 and 3 x 10 8 m/s respectively. Calculate the angle of refraction in glassĪnd the velocity of light in glass if the refractive index of glass and the Refraction = 37 O10’ and velocity of light in glass = 2 x 10 8Ī ray of light is incident on a glass slab making an angle = 1.5, Velocity of light in air = c a = 3 x 10 8 m/sįind: Angle of refraction = r =? VelocityĪngle of incidence = 90 o – glancing angle = 90 o Given: Glancing angle = ig = 25 o, Refractive index = μ

Calculate the angle of refraction in glass and velocity of light in the glass, if the refractive index of glass and velocity of light are 1.5 and 3 x 10 8 m/s respectively. A ray of light is incident on a glass slab making an angle of 25° with the surface.

Finding angle of reflection