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The demand for goods which are needed in order to produce finished goods is called indirect demand. Indirect demand is also called as derived demand.
Which of the following is a nonrenewable source of energy?
Smog is a combination of –
A capacitor of 4 µF is charged to 100 V. It is then connected across an uncharged 2 µF capacitor. Final common voltage is:
A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding?
A plane mirror is placed on a wall. A man walks directly toward the mirror at 2 m/s. The speed at which his image approaches him is:
What is the main principle behind the working of an electric motor?
A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the ...
How long does an image remain on the retina after the object is removed?
Two long parallel wires 2 cm apart carry 5 A and 3 A currents in the same direction. What is the force per unit length on one wire?
In a convex lens, when the object is at infinity, then the position of image is ______.
