Ray Optics often overwhelms Class 12 students due to formulas and sign conventions. An expert board examiner explains why ...

Toppers and exam experts suggest that aspirants should have clarity in concepts of subjects including Physics, Chemistry and Physics. They recommend that aspirants should thoroughly brush and revise ...

Q. A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp ...