Sound — Physics STD 11 Science — Question

A light and a heavy body have equal K.E. Which body possesses greater momentum?

On increasing the temperature of a conductor, its resistance increases because

The gravitational potential energy per unit mass at a point gives ________ at that point.

Centre of mass (C.M.) of three particles of masses 1 kg, 2 kg and 3 kg lies at the point (1, 2, 3) and C.M. of another system of particles of 3 kg and 2 kg lies at the point (-1, 3, -2). Where should we put a particle of mass 5 kg so that the C.M. of entire system lies at the C.M. of the first system?

A bus travels its onward journey with a constant speed of 30 km/hr while its return journey with a constant speed of 60 km/hr, the average speed for its entire journey is

If a particle moves in a circle describing equal angles in equal intervals of time, the velocity vector

When the force acting on the object and the velocity of the object both are along the same line, it is called _____________ .

The terminal voltage across a cell is more than its e.m.f., if another cell of

At the point of horizontal range (R), the coordinates are

The points A and B are situated perpendicular to the axis of 2 cm long bar magnet at large distances x and 3 x from the centre on opposite sides. The ratio of magnetic fields at A and B will be approximately equal to