Question : Which of the following laws applies to the force of attraction or repulsion between two point charges?
Option 1: Kirchhoff's Law
Option 2: Newton's Law of Universal Gravitation
Option 3: Coulomb's Law
Option 4: Newton's Laws of Motion
Correct Answer: Coulomb's Law
Solution : The correct answer is Coulomb's Law.
Coulomb's law states that the force of attraction or repulsion between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. This force acts along the imaginary line connecting the two charges, treating them as point charges.
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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
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
Question : Newton's first law is also known as:
Option 1: Law of friction
Option 2: Law of momentum
Option 3: Law of inertia
Option 4: Law of motion
Question : Newton's first law of motion is also known as_________.
Option 1: law of magnitude
Option 2: law of reaction
Option 3: law of inertia
Option 4: law of masses
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?
Option 1: Graham's Law
Option 2: Kepler's Law
Option 3: Charles's Law
Option 4: Boyle's Law
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