A plane glass plate is kept between a point object and a convex mirror of focal length 20 cm. The distance of the glass plate from the mirror is 5 cm. Rays of light from the point source, after reflection at the convex mirror and also at the front face of the glass plate form images at the same position. Find the distance between the glass plate and the point source.
Important Questions on Reflection of Light
An object is kept at a distance of 40 cm from a convex mirror. At a distance of 25 cm from the object a plane mirror is so placed that it covers one half of the convex mirror. As a result, the two images produced by the curvature of the convex mirror ?
A point source S is placed midway between two converging mirrors having equal focal length f. Find the distance between the mirrors for which only one image is formed.
An object 2.5 cm long is placed vertically on the principal axis in front of a concave mirror of focal length f its distance from it. Of what length and nature are its images formed?
Two mirrors, one concave and the other convex, and placed coaxially with their reflecting surfaces facing each other. Their radii of curvature are equal, say , and the distance between them is . A point object is placed on the axis in such a way that it coincides with its image formed by two reflections, the first reflection being by the convex mirror. Determine the position of the object. Where will be the image formed if the first reflection takes place at the concave mirror ?
