Gravitation (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 5 - 7 of 7

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Question number: 5

» Gravitation » Energy

Appeared in Year: 2015

MCQ▾

Question

An object is propelled vertically to a maximum height of 4R from the surface of a planet of radius R and mass M. The speed of object when it returns to the surface of the planet is,

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Question number: 6

» Gravitation » Gravitational Potential

MCQ▾

Question

Two masses m1 = 10 kg and m2 = 810 kg are held 2 m apart. At a point P on the line joining them is the gravitational field equal to zero. The gravitational potential at that point is –

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Question number: 7

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

A hanging wire is 170 cm long having a bob of 1.50 kg. It shows a time period of 1.35 s on a Planet Newtonia. If the circumference of Newtonia is, find the mass of the planet.

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