A ray of light, after refracting through a concave lens, emerges parallel to the principal axis. Draw a ray diagram to show the incident ray and its corresponding emergent ray.

Explain the following terms: incident ray Draw diagram/diagrams to show them.

Draw the diagram given below and clearly show the path taken by the emergent ray:

Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.

A ray of light strikes a glass slab 5 cm thick, making an angle of incidence equal to 30^(@) . (a) Draw a ray diagram showing the emergent ray and the refracted ray through the glass block. The refractive index of glass is 1*5 . (b) Measure the lateral displacement of the ray. The sin 19*5^(@)=1//3 .

A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.

A ray of light falls normally on a rectangular glass slab. Draw a ray diagram showing the path of the ray till it emerges out of the slab.

Diagram (a) and (b) in figure below show the refraction of a ray of light of single colour through a prism and a parallel sided glass slab respectively. (i) In each diagram, label the incident, refracted, emergent rays and the angle of deviation. (ii) In what way the direction of the emergent ray in the two cases differ with respect to the incident ray ? explain your answer.

A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges and calculate the refractive index of the material of prism.