Question

Match the column I with column II.

	Column I		Column II
(A)	Kepler’s law	(p)
(B)	Kepler’s second Law	(q)	Inverse square law
(C)	Kepler’s law	(r)	Orbit of planet is elliptical
(D)	Newton’s law of gravitation	(s)	Law of conservation of angular momentum

• A. A – s, B – p, C – q, D –r
• B. A – p, B – q, C –r, D – s
• C. A –r, B – s, C –p, D –q
• D. A –s, b – p, C –q, D – s

Answer 1

Answer: (C)

A –r, B – s, C –p, D –q

Answer 2

According to Kepler’s first law, all planets move in elliptical orbits with the sun situated at one of the foci

A-R

Kepler’s secons law is a consequence of law of conservcations of angular momentum.

B – s

Accoridng to Kepler’s third law, the square of the time period of revolution of a planet is proportional to the cube of the semi-major axi of the ellipse traced out by the planet.

C – p

Acceding to Newton’s law of gravitations, everybody in the universe attracts every other body with a force which is directly proportional to be product of their masses and inversely proportional to the square of the distance between them.

D – q