Gravitation-Energy (KVPY Stream-SA (Class 11) Physics): Questions 1 - 3 of 3

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 252 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 1

» Gravitation » Energy

Appeared in Year: 2015

MCQ▾

Question

A planet is orbiting the sun is an elliptical orbit. Let U denote the potential energy and K denote the kinetic energy of the planet at an arbitrary point on the orbit. Choose the correct statement

Choices

Choice (4) Response

a.

Equation for two positions of the planet in the orbit

b.

Equation always

c.

Equation always

d.

Equation always

Question number: 2

» Gravitation » Energy

MCQ▾

Question

Two starts each of 1 solar mass Equation are approaching each other for a head-on collision. When they are at a distance of 3 ⨯ 107 km, their speeds are negligible. The speed with which they collide is –

(The radius of each star is 105 km, assume the stars to remain undistorted until they collide. Equation . )

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Gravitation » Energy

MCQ▾

Question

Two starts each of 1 solar mass Equation are approaching each other for a head-on collision. When they are at a distance of 109 km, their speeds are negligible. The speed with which they collide is –

(The radius of each star is 104 km, assume the stars to remain undistorted until they collide. Equation . )

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In