Question
If in a motion, the axis of the rotation passes through
an object, then the motion is called.Solution
A rotation is a circular movement of an object around a center (or point) of rotation A threedimensional object al ways rotates around an imaginary line called a rotation axis.
A wire loop in the shape of a square of side a carries a current I. If an infinitely long straight wire carrying the same current passes through the cen...
When a cannonball is fired, its motion is an example of which type of motion?
A stone of mass 0.3 kg tied to the end of a string is whirled round in a circle of radius 1.2 m with a speed of 20 rev./ mim in a horizontal plane. Wha...
Two blocks of masses 2 kg and 4 kg are connected by a light spring (k = 300 N/m) and placed on a smooth horizontal surface. The spring is compressed by ...
A spherical black body with a radius of 8 cm radiates 450-watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated...
Which of the following is NOT a non-contact force?
The intensity of any wave is proportional to which quantity?
Which law states that "the rate of heat loss of a body is directly proportional to the temperature difference between the body and its surroundings"?
In streamline flow through a horizontal pipe, at one point the cross-sectional area is 4 cm² and velocity is 8 m/s. If at another point the cross-secti...
