Two mirror are parallel to each other, then the number of images formed is _____.

Plane mirror aer arranged parallel to each other to get ----

Two plane mirrors are parallel to each other an spaced 20 cm apart. An object is kept in between them at 15cm from A out of the following at which point on image is not formed in mirror A (distance measured from (d) Between 0 and + o. Ans. (b) + 1] mirror A)

If two mirrors are kept at 60^(@) to each other and a body is placed at the middle, then total number of images formed is

If two plane mirrors are inclined to each other at an angle of 45^@ , find the mumber of images formed.

In the adjacent figure PQ and RS are two mirrors placed parallel to each other. An incident ray AB strikes the mirror PQ at B, the reflected ray moves along the path BC and strikes the mirror RS at C and again reflected back along CD . Prove that AB || CD.

Resultant of two vectors which are parallel to each other and are in the same direction is obtained by . . . . Of vectors .

Two plane mirrors A and B are aligned parallel to each other, as shown in the figure. A light ray is incident at an angle of 30^@ at a point just nside one end of A. The plane of incidence coincides with the plane of the figure. The maximum number of times the ray undergoes reflections (including the first one) before it emerges out is)

Can we draw two tangents parallel to each other on a circle ?