Which of the following principles does rocket work?

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

Newton’s first law of motion

Newton’s second law of motion

Universal law of gravitation

Law of conservation of momentum

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Rockets work on the law of conservation of momentum.
A rocket is a device that propels itself forward by expelling particles of a fuel mixture downward.
The principle of momentum conservation underpins rocket propulsion. When the rocket is initiated, the exhaust gases rush downward at rapid speed, providing the rocket with the opposite momentum and pushing it upward.
Thus, the reaction forces of high-speed gases ejected at the back of the rocket provide thrust. As a result, the rocket's impulse is caused by a rapid change in momentum.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th

🔥 Start Your JEE/NEET Prep at Just ₹1999 / month - Limited Offer! Check Now!

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th