What is the angle at which a glass plate of refractive index 1.65 is to be kept with respect to the horizontal surface so that an unpolarised light travelling horizontal after reflection from the glass place is found to be plane polarised?

One type of transparent glass has refractive index 1.5. What is the speed of light through thi glass?

The angle of incident at which reflected light is totally polarised for reflection from air to glass (refractive index mu ) is

Light travelling through tranparent oil enters in to glass of refractive index 1.5. If the refractive index of glass with repect to the oil is 1.25, what is the refractive index of the oil?

Light enters from air into a glass plate having refractive index 1.5. What is the speed of light in glass ? (c = 3 xx 10^(8) ms^(-1) )

a.Figure shows a cross-section of a 'light pipe' made of glass fibre of refractive index 1.68 The outer converting of the pipe is made of a material of refractive index 1.44. What is the range of the angles of the incident rays with the axis of the pipe for which total reflections insides the pipe take place as shown in the figure. b.What is the answer if there is no outer converting of the pipe ?

A double convex lens is to be made of glass with refractive index. 1.5 One surface is to have twice the radius of curvature of the other surface and focal length is to be 60 mm. What are the radii ?

An air bubble in glass slab of refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness of the slab is,