SAT (Stage-2) M...

A wire has a resistance of 1 Ω. It is stretched to double its length. The resistance of the wire will be

A compass needle pointer, not under the influence of any magnet and freely suspended, points in the ______ direction.

A system consists of masses M and m (< M). The centre of mass of the system is

A parachutist of weight W strikes the ground with his legs fixed and comes to rest with an upward acceleration of 3g. The force exerted by him on the ground during landing is

The figure below shows a body of mass 10 kg sliding from rest, down a frictionless track of radius R (in m). Assume that the body started from the top of the track P and slides to the bottom Q. The change in the gravitational potential energy in the motion is (g = acceleration due to gravity)

A concave mirror of focal length f produces an image m times the size of the object. If the image is real, then the distance of the object from the mirror is

If refractive index for glass is 1.5, and the velocity of light in vacuum is 3.0 ×10⁸ m/sec, the time taken by the light in travelling a distance of 300 m in glass will be

Gravity is a conservative force. Which of the following is incorrect about this force?

At what height above the earth's surface does the acceleration due to gravity fall to 1% of its value at the earth's surface?

A and B are two objects. The temperature of A is greater than that of B. This means that

A particle has an initial velocity of 9 m/s due east and a constant acceleration of 2 m/s² due west. The distance covered by the particle in the 5^th second of its motion is

A particle moves along the x- axis as follows:

It starts from rest at t = 0 from a point x = 0 and comes to rest at t = 1 at a point x = 1. No other information is available about its motion for the intermediate time (0 < t < 1). If α denotes the instantaneous acceleration of the particle, then

Ultrasonic, infrasonic and audible waves travel through a medium with speeds v_u, v_i and v_a, respectively. Which of the following relations holds true?

Which of the following salts possesses water of crystallisation?

Which of the following is basic in nature?