Figure alongside shows two rays A and B travelling from water to air. If the critical angle for water-air surface is `48^(@)`, complete the ray

diagram showing the refracted for each. State conditions when the ray will suffer total internal reflection.

State the approximate value of the critical angle for (a) glass-air surface (b) water-air surface.

Figure alongside shows an equilateral prism ABC and the ray QR emerging out from the prism after suffering minimum deviation. Complete the diagram to show the refracted ray PQ inside the prism and the incident ray OP on the prism. State in words how have you completed the diagram to show the refracted ray PQ inside the prism and the incident ray OP on the prism. state in words how have you completed the diagram.

Rays of light fall on the plane surface of a half cylinder at an angle 45^@ in the plane perpendicular to the axis (see figure). Refractive index of glass is sqrt2. Discuss the condition that the rays do not suffer total internal reflection.

The diagram below shows two parallel rays A and B of red and violet light respectively incident from air on air-glass boundary. Complete the diagram showing the refracted rays for them in the glass. (i) How do the speeds of the rays differ in glass ? (ii) are the two refracted rays in glass parallel ? Give a reason for your answer. (iii) How does the refractive index of glass differ for the two rays ?

Complete the ray diagram shown below, given that the critical angle. for air-glass pair is i_(c)=42^(@)

In Figure, a ray of light A incident from air suffers partial reflection and refraction at the boundary of water. (a) Complete the diagram showing (i) the reflected ray B and (ii) the refracted ray C. (b) How are the angles of incidence i and refraction r related ?

A ray of light travels from water to air as shown in the diagram given below: State the condition so that total internal reflection occurs in the above diagram.

A ray of light travels from water to air as shown in the diagram given below: Copy the diagram and complete the path of the ray. Given the critical angle for water is 48^(@) .

A ray of light travelling in a transparent medium f refractive index mu , falls on a surface separating the medium from air at an angle of incidence of 45^(@) . For which of the following value of mu the ray can undergo total internal reflection ?

A ray of light travelling in a transparent medium f refractive index mu , falls on a surface separating the medium from air at an angle of incidence of 45^(@) . For which of the following value of mu the ray can undergo total internal reflection ?