Physics - Geometrical Optics Question with Solution | TestHub

For real extended objects, if the image formed by a single mirror is erect then it will always be virtual.

If a point object is moved at constant speed towards a concave mirror from infinity along the principal axis, then its image will move with constant speed from focus to infinity.

According to Huygen's principle every point on a wavefront acts like a new independent source and sends a spherical wave called a secondary wave.

If one surface of a thin equiconvex lens is silvered then it must behave like a concave mirror having same radius of curvature as of the silvered surface of lens.