Question : Why does a cannon recoil after firing?
Option 1: Conservation of energy
Option 2: Backward thrust of gases produced
Option 3: Newton's third law of motion
Option 4: Newton's first law of motion
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Correct Answer: Newton's third law of motion
Solution : The correct option is Newton's third law of motion.
Newton's third rule of motion, which states that there is an equal and opposite reaction to every action, causes a cannon to recoil when it fires. A projectile is fired from a cannon by firing a high-velocity stream of gas created by the ignition of gunpowder or another propellant. This motion also generates an equal and opposite reaction force, driving the cannon backwards by Newton's third law.
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Question : It is difficult to fix a nail on a free-suspended wooden frame. Which law supports this statement?
Option 1: Law of inertia
Option 2: Newton's second law
Option 3: Newton's third law
Option 4: Pascal's law
Question : Which law states that bad money drives good money out of circulation?
Option 1: Wagner's law
Option 2: Grimm's law
Option 3: Gresham's law
Option 4: Keynes' law
Question : Which law was proposed in 1811, predicted that the same volume of gases at the same temperature and pressure would have the same number of molecules?
Option 1: Dalton’s law
Option 2: Gay-Lussac’s law
Option 3: Avogadro’s law
Option 4: Charles' law
Question : Which law was based on notes of the music?
Option 1: Newton law
Option 2: Law of octaves
Option 3: Mendeleev law
Option 4: Modern periodic law
Question : Directions: F is C's son. C is the only daughter of B. D is A's only son-in-law. B is C's father. A is B's wife. How is D related to F?
Option 1: Brother-in-law
Option 2: Father
Option 3: Father-in-law
Option 4: Brother
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