Which of the following types of waves needs a medium for ...
Which of the following types of waves needs a medium for propagation?
sound waves
light waves
radio waves
x - rays
Correct answer is A
Sound is the only mechanical wave among the rest which are electromagnetic waves.
Capacitors are used in the induction coil to ...
A small object of mass 50 g is released from a point A. Determine the velocity of the object wh...
A gas at pressure PNm−2 and temperature 27°C is heated to 77°C at constant volume. Th...
When the linear momentum of a body is constant, the net force acting on it ...
The latent heat of fusion of a substance is the heat required to ...