If an object is placed at the centre of curvature of a concave mirror, then the image is formed:
0 - 0
The focal length of a concave mirror is 20 cm. The radius of curvature is:
2 - 3
The image formed by a plane mirror is:
5 - 1
According to Biot–Savart’s law, the magnetic field at a point due to a current element is:
6 - 3
The self-inductance of a coil depends on:
2 - 0
According to Lenz’s law, the direction of induced current is such that:
4 - 0
A block is pulled with a constant force on a smooth horizontal surface. The acceleration of the block will be:
4 - 0
Que. Faraday’s law of electromagnetic induction states that:
4 - 0
The SI unit of force is:
5 - 0
Action and reaction forces:
6 - 4
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15 March 2020