Question : Rocket works on the principle of:
Option 1: Newton's third law
Option 2: Newton's first law
Option 3: Newton's second law
Option 4: Archimedes Principle
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Correct Answer: Newton's third law
Solution : The correct option is Newton's third law.
Newton's third law of motion, which states that there is an equal and opposite reaction to every action, is the foundation upon which rockets operate. This means that a rocket encounters a force in the opposite direction from the direction in which it expels mass (the action), propelling it forward (the reaction). This is accomplished in a rocket engine by the high-speed exhaust gases being expelled through a nozzle at the back of the rocket.
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Question : Which of the following laws applies to the force of attraction or repulsion between two point charges?
Question : Newton's first law of motion is also known as_________.
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Question : Which of the following laws states that with the temperature remaining constant, the volume of a given mass of a gas varies inversely with the pressure of the gas?
Question : A cyclist, after cycling a distance of 70 km on the second day, finds that the ratio of distance covered by him on the first two days is 4 : 5. If he travels a distance of 42 km on the third day, then the ratio of distance travelled on the third day and the first day is:
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