The SI unit of acceleration is ..................
Device which uses sound waves for detection and ranging is called
Ultraviolet rays can be used in water treatment as
Fiber optics cable used in communication, works on the principle of
Certain substances loose their electrical resistance completely at super lower temperature. Such substances are called
A good conductor while carrying current is
What is the SI unit of intensity of sound?
If the speed of an object moving along a straight line is constant, its motion is said to be ..........
The force which makes a vehicle to stop when break is applied is called
What is the SI unit of power?