Electromagnetic Waves and Communication System — Physics STD 11 Science — Question

Have you experienced a shock while getting up from a plastic chair and shaking hand with your friend?

State Newton’s law of gravitation.

What does Ampere’s law describe?

If you freely hang a bar magnet horizontally, in which direction will it become stable?

What is an elastomer?

According to Newton’s third law of motion for every action there is equal and opposite reaction, why two equal and opposite forces don’t cancel each other?

Name the most harmful radiation entering the Earth’s atmosphere from the outer space.

How can resultant of two vectors of a type inclined with each other be determined?

If wrong, give the correct modified version of his statement.

Lines of force are imaginary; can they have any practical use?