Physics

Q513

Two convex lenses of equal focal length f are placed in contact the resultant focal length is______________?

Q514

A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 m height further, find the magnitude of the force. Consider g = 10 m/s2

Q517

During which process of energy exchange does cold air displace warmer air?

Q518

According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________?

Q519

An electric motor is used to convert——–.

Scroll to Top