How much water should be filled in a container 21 cm in height, so that it appears half filled when viewed from the top of the container (given that aμω=43)
Q. The correct relation between the radius of curvature (R), distance of object from the mirror (u), and distance of image formed (v) from the mirror is
Q. Photographs of the ground are taken from an aircraft flying at an altitude of 2000 m by a camera with a lens of focal length 50 cm. The size of the film in the camera is 18cm×18cm. The area of the ground that can be photographed by the camera is:
A plane mirror is placed at the bottom of the tank containing a liquid of refractive index μ. P is a small object at a height h above the mirror. An observer O-vertically above P outside the liquid see P and its image in the mirror. The apparent distance between these two will be