NEET Physics Question - Laws of Motion

Assertion (A): A rocket moves forward by pushing the surrounding air backward.

Reason (R): There is an equal and opposite reaction to every action.

(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)

(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(3) (A) is true but (R) is false

(4) Both (A) and (R) are false

Solution:

Assertion (A) is false; rockets achieve propulsion by expelling hot gases backward, not by pushing the surrounding air. They work in vacuum. Reason (R) is true, stating Newton's third law. Thus, (A) is false and (R) is true. Option (4) is selected as it correctly identifies (A) as false.

Rankers Physics

Rocket Propulsion

Solution:

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