An object is placed in front of a concave mirror whose radius of curvature is 12cm. If the magnification of the Image produced is 1.5, how far is the object...

The angle between the geographic and the magnetic meridians at a place on the earth’s surface is the

Which of the statements is/are true of two bodies involved in an inelastic collision? After collision. I. the kinetic energy increases II. The momentum decre...

A 12V battery supplies a current of 0.4A to a lamp. Calculate the resistance of the lamp.

In which of the following is the expansion of solids a disadvantage?

491 K is equivalent to

The following are derived units EXCEPT

A body moves along a circular path with uniform angular speed of 0.6 rad s-1 and at a constant speed of 3.0 ms-1. Calculate the acceleration of the body towa...

An atom radiates 1.5 × 10-19J when an electron jumps from one level to another. What is the wavelength of the emitted radiation? (Planck’s constant 6.6 × l0-...