Nature of Physical World and Measurement — Physics STD 11 — Question

If the brake is applied in the moving bus suddenly, passengers move forward is an example for –

Inelastic collision is due to

The reduced mass of the system of two particles of masses 2 m and 4 m will be –

In a given process on an ideal gas, dW = 0 and dQ < 0. Then for the gas ……..

The Doppler effect is applicable for ……..

The word physics is derived from the word …..

A longitudinal wave is described by the equation y = y0 sin 2π (ft – x/λ). The maximum particle velocity is equal to four times the wave velocity if ……..

Moment of inertia ofa thin uniform rod about an axis passing through one end and perpendicular to the length is-

The force acting on a body is measured as 4.25 N. Round it off with two significant figure ..

The kinetic energy is conserved in