Convex
Concave
Plane
Neither concave nor convex
A motor running on electricity at the rate of 400 W raises a block of weight 120 N. If the block moves 8 m vertically in 4 s, the efficiency of the motor is
A moving body on Earth ordinarily comes to rest by itself because of the
A moving bullet hits a solid target resting on a frictionless surface and gets embedded in it. What is conserved in this process?
A moving coil instrument can be used to measure
A moving neutron collides with a stationary a - particle. The fraction of the kinetic energy lost by the neutron is
A multimeter is used to measure
A narrow white light beam fails to converge at a point after going through a converging lens. This defect is known as
A needle or a pin floats on the surface of water as of
A noise level of 100 decibel would correspond to
A NOT gate can be implemented by
