PART - 2 CH - 9 Mechanical Properties of Fluids — Physics STD 11 Science — Question

Most accurate clock is………… .

Property of liquid surface by virtue of which, it behaves as an elastic stretched membrane and tends to have minimum surface area is known as _____________________.

Fill in the blanks: S.I. unit of angle is ______.

According to law of equipartition of energy average kinetic energy per molecule per degree of freedom is .

Device which converts continuously heat energy into mechanical energy in a cyclic process is known as _________.

Ideally a ............. is a body with a perfectly definite and unchanging shape. The distances between all pairs of particles of such a body do not change.

Optical fibres works on the Principle of _______.

Rocket propulsion is based on the scientific principle of ______.

In the presence of conservative forces, mechanical energy of isolated system remains. ...............