Fill ups
A rays of light paralle to the principal axis after reflection from convec mirror appears to be coming from…………… .

Explain how a parallel beam of light on reflection from a concave mirror gets converged.

Explain how a parallel beam of light on reflection from a convex mirror gets diverged.

A convex lens of focal lenght 20 cm is placed coaxially with a concave mirror of focal length 10 cm at a distance of 50 cm apart from each other.A beam of ligh coming parallel to the principal axis is incident on the convex lens.Find the position diagram showing the formation of the imge.

A ray of light moving parallel to the x-axis gets reflected form a parabolic mirror whose equation is (y-2)^2=4(x+1) . Find the point on the axis of the parabola through which the ray must pass after reflection.

Parallel rays incident on a mirror,after reflection converge at a point, then the mrirror will be …… .

The refractive index of the amterial of a prism is sqrt2 and its refracting angle is 30^@ .One of the refracting surface of the prism is made a mirror inwards.A beam of monochromatic light entering the prism from the other face will retrace its path after reflecting from the mirrored surface,if its angle of incidence on the prison is

Can light travelling from air to water suffer total internal reflection?

A spherical convex mirror of focal length 25 cm has an object of length 2 cm placed perpendicularly to the principal axis and at a distance of 100 cm from the miror.Where is the image formed and what is its size and nature?

Fill in the blanks : A person 1m in front of a plane mirror seems to be ……………… m from his image.

A mirror and a source of light are situated at the origin O and at a point on OX, respectively. A ray of light from the sources strikes the mirror and is reflected. If the direction ratios of the normal to the plane are 1, -1, 1, then find the DCs of the reflected ray.