If `theta _c `in the critical angle, write the deviation value when the ray travels from denser to rarer for `i gt theta_c`.

When a wave travels from a denser to rarer medium, then

State whether the following statement is true or false ? If the angle of incidence is greater than the critical angle, light is not refracted at all, when it falls on the surface from a denser medium to a rarer medium.

Let the refractive index of a denser medium with respect to a rarer medium be n_(12) and its critical angle be theta_(c) . At an angle of incidence A when light is travelling from denser medium to rarer medium, a part of the light is reflected and the rest is refracted and the angle between reflected and refracted rays is 90^(@) , Angle A given by -

Let the refractive index of a denser medium with respect to a rarer medium be n_(12) and its critical angle be theta_(c) . At an angle of incidence A when light is travelling from denser medium to rarer medium, a part of the light is reflected and the rest is refracted and the angle between reflected and refracted rays is 90^(@) , Angle A given by -

Find the angle theta_a made by the light ray when it gets refracted from water to air, as shown in Fig .

Fill the blanks to complete the following sentence: Q: When light travels from a denser to a rarer medium, its speed ______

(I) How does the refractive index of a medium depends on the wavelength of light used? (II)Which is greater, angle of incidence or angle of refraction, when light travels from denser medium to rarer medium.

STATEMENT -1 : The critical angle is defined when light goes from denser medium to the rarer medium. and STATEMENT - 2 : In total internal reflection, intensity of light remains same.

Statement I: A ray is incident from outside on a glass sphere surrounded by air as shown in Figure. This ray may suffer total internal reflection at the second interface. Statement II: For a ray going from a denser to rarer medium, the ray may suffer total internal reflection.