Can a ‘total reflecting prism’ be made of ice (R.I.1.3) for deviating a ray by `90^@`? Give reason.

The refractive index of the material of a prism is sqrt((3)/(2)) and the refracting angle is 90^(@) The angle of minimum deviation of the refracted ray by the prism is

A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. By rotating the prism,the angle of minimum deviation is measured to be 40^(@) . What is the refractive index of the material of the prism? If the prism is placed in water (refractive index 1.33), predict the new angle of minimum deviation of a parallel beam of light. Refracting angle of the prism is 60^(@) .

The refracting angle of a glass prism is 60^(@) and the refractive index of glass is 1.6. If the angle of incidence of a ray of light on the first refracting surface is 45^(@) Calculate the angle of deviation of the ray . Given that sin 26^(@)14' = 0.4419, " " sin33^(@)46' = 0.5558 and sin62^(@)47' = 0.8893

If a ne1 be a real positive number , can the relation sin theta =a+1/a be true ? Give reasons.

Write down the expression of angle of deviation by thin prism. A ray of light undergoes deviation of 30^@ when incident on an equilateral prism of refractive index sqrt2 . Find the angle made by the ray inside the prism with the base of the prism.

Can the numbers 1,2,3 be the direction ratio of a straight line? Give reason.

Hydrogen can be placed in Group 17 instead of Group 1 of periodic table. Give reason.