Question

A rocket works on the principle of

• A. conservation of energy
• B. conservation of linear momentum
• C. conservation of inertia
• D. conservation of force

Answer 1

The correct option is B

conservation of linear momentum

1. Rocket works on the principle of conservation of momentum.
2. Rocket ejaculates gases in backward direction which creates momentum of the gases backward and thus by conservation of momentum, the rocket gets momentum in the forward direction making it move forward.

Hense correct answer is (B).