A ray of light travelling in impure water is incident on a glass plate immersed in it. When the angle of incidence is `51^@` , the refractive index of impure water is `1.4`. The refravtive idex galss shold be………… (` tan 51^@ = 1.235`)

A ray of light travelling in impure water is incident on a glass plate immersed in it. Wher the angle of incidence is 51^(@) , the reflected ray i totally plane polarised. Given that refractiv index of impure water is 1.4. The refractive index of glass should be ......

A ray of light travelling in water is incident on a glass plate immersed in it. When the angle of incident is 51^(@) the reflected ray is totally plane polarized. Find the refractive index of glass. Refractive index of water is 1.33.

A beam of light travelling in water strikes a glass plate, which is also immersed in water. When the angle of incidence is 51^@ , the reflected beam is found to be plane polarised . What is the refractive index of glass if the refractive index of water is (4)/3 ? [tan 51^(@)=1.235]

A beam of light travelling in water strikes a glass plate, which is also immersed in water. When the angle of incidence is 51^@ , the reflected beam is found to be plane polarised . What is the refractive index of glass if the refractive index of water is (4)/3 ? [tan 51^(@)=1.235]