Laws of Motion — Physics STD 11 — Question

The equation of a wave moving on string is y = 8 sin{π(0.002 x – 4t)} where x, y are in centimeter and t in seconds. The velocity of the wave is ……

Kepler’s second law regarding constancy of aerial velocity of a planet is consequence of the law of conservation of ………

Sound whose frequency is 50 Hz?

At 0°C, Pressure measured by barometer is 760 mm. What will be the pressure at 100°C?

Weight of a body is maximum at …..

The speeds of 5 molecules of a gas (in arbitrary units) are as follows: 2, 3, 4, 5, 6 The root mean square speed for these molecule is

The dimension of point mass is –

A body of mass loo g is sliding from an inclined plane of inclination 30°. if u = 1.7, then the frictional force experienced is –

In free body diagram, the object is represented by a –

A point source emits sound equally in all direction is a non-absorbing medium. Two points P and Q are at distances of 2m and 3m, respectively, from the source. The ratio of the intensities of the waves at P and Q is …….