Oscillations — Physics STD 11 Science — Question

The tangential acceleration of a particle moving with constant speed in a circular of path radius R will be ............... .

According to Wien's law the temperature of the sun surface is approximately ____________.

In ideal gas the size of a molecule is negligible compared with the               between the molecules.

Mercury has the ................ period and Pluto has ................ Period

If an object performs linear motion along with rotational motion, then K.E .............

Spherical balls of radius R are falling in a viscous fluid of viscosity n with a velocity v. The retarding viscous force acting on the spherical ball is:

1. Directly proportional to radius R but inversely proportional to velocity.
2. Directly proportional to both radius R and velocity v.
3. Inversely proportional to both radius R and velocity v.
4. Inversely proportional to R but directly proportional to v.

When temperature is increased, the angle of contact of a liquid _________________.

When a displacement of a particle doing simple harmonic motion is zero (mean positon), then the velocity of particle and ____________the acceleration of the ____________particle are.

Work done in stretching a wire against restoring force is stored as _______ in the wire.