Pinhole Camera|Mirrors and Reflections

Which of the following statements are correct? (i) The shape of a shadow depends on the position of the source of light. (ii) A plane mirror can change the direction of light falling on it. (iii) A pinhole camera forms an erect image of an object on a screen. (iv) A shadow is formed when light passes through a transparent object .

Two plane mirrors are placed perpendicular to each other. A ray strikes one mirror and after reflection falls on the second mirror. The ray after reflection from the second mirror will be

STATEMENT-1: In high-quality optical devices, such as camera, binocular, periscope, et.c prisms are used in place of plane mirrors to reflect light. STATEMENT-2: In plane mirrors, reflections occur both in the front and rear (silvered) surfaces.

Two plane mirrors are inclined at 70^@ . A ray incident on one mirror at incidence angle theta after reflection falls on the second mirror and is reflected from there parallel to the first mirror, The value of theta is

In a convex spherical mirror, reflection of light takes place at :