Advertisements
Advertisements
प्रश्न
A microphone converts :
विकल्प
electrical energy into sound energy in ordinary telephone
microwave energy into sound energy in a mobile phone
sound energy into mechanical energy is a stereo system
sound energy into electrical energy in public address system
उत्तर
A microphone converts sound energy into electrical energy in public address systems.
Therefore, the answer is, (d) Sound energy into electrical energy in public address system.
APPEARS IN
संबंधित प्रश्न
State the condition under which the mechanical energy is conserved.
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. Taking g = 10 m s-2, calculate:
- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
Is energy a vector quantity?
State whether the object possess kinetic energy, potential energy, or both :
A bird running on the ground ____________.
What type of energy is possessed : by the stretched rubber strings of a catapult?
Define the term 'energy' of a body. What is the SI unit of energy.
Name the device or machine which convert :
light energy into heat energy.
A ball falls to the ground as shown below :
Which law you have made use of in answering this question?
The device which converts mechanical energy into energy which runs our microwave oven is :
In the case of negative work, the angle between the force and displacement is
