Answer : D
Explanation
Centripetal force a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving..
In a cirular motion the direction of motion?
Answer : A
Explanation
The motion of the earth around the sun is circular motion.
Which among the following is measured using a Vernier Capiller?
Answer : A
Explanation
A barometer is a scientific instrument used to measure air pressure.
Which among the following is used to listen and record underwater sounds ?
Answer : C
Explanation
An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.
Which of the following is based on the process of fusion?
Answer : B
Explanation
Hydrogen bomb was invented by Edward Teller.