JEE Physics - MCQ Practice Questions

Snell's law is violated when light travels from denser to rarer medium at angle of incidence greater than critical angle because:

In Young's double slit experiment, if one slit is covered with a glass plate of thickness t and refractive index n, the central bright fringe shifts by:

An object is placed 15 cm in front of a concave mirror of radius of curvature 20 cm. The magnification is:

The angle of minimum deviation for a prism is 30° and the prism angle is 60°. The refractive index is:

Diffraction fringes are observed when light passes through a single slit. The first minimum occurs at angle θ where:

A convex and concave lens of focal lengths 20 cm and 30 cm respectively are in contact. Their combined power is:

Light is incident on a transparent glass slab at Brewster's angle. At this angle: