A force F is applied on a body (which moves on a straight line) for a duration of 3 s. The momentum of the body changes from 10 g cm/s to 40 g cm/s. The magnitude of the force F is

 A current-carrying wire is known to produce magnetic lines of force around the conducting straight wire. The direction of the lines of force may be described by:

 If d denotes the distance covered by a car in time t and s denotes the displacement by the car during the same time, then

An ant is moving on thin (negligible thickness) circular wire. How many coordinates do you require to completely describe the motion of the ant?

Which of the following statements in conection with the properties of water is/are correct?

1. Water has higher specific heat in comparison with other liquid
2. Water has no dipole moment
3. Water has low heat of vaporization

Select the correct answer using the code given below

Consider the following statement

No Indian could have started the Indian National Congress. If the founder of the Congress had not been a great Englishman and a distinguished ex-official, such was the distrust of political agitation in those days that the authority would have at once found some way or the other to suppress the movement.

Who among the following gave the statement on the establishment of Indian National Congress