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Published on: 29/05/2021
QB365 Provides the HOT Question Papers for Class 11 Physics, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams
Download CBSE Class 11th Standard CBSE Physics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 11th Standard CBSE Physics
Questions + Answers key
Take MCQ Physics Test1.
Two particles of masses m1 and m2 attract each other gravitationally and are set in motion under the influence of the gravitational force? Will the centre of mass move?
2.
Work done in moving a particle round a closed path under the action of gravitation force zero. Why?
3.
How much energy is required by a satellite to keep in orbiting?Neglect air resistance.
4.
An artificial satellite revolving around the earth does not need any fuel.On the other hand,the aeroplane requires fuel to fly at certain height why?
5.
Assume that an artificial satellite release a bomb.Would the bomb ever strike the earth if the effect of air resistance in neglected?
1.
Since, gravitational force is an internal force, therefore the centre of mass would not move.
2.
Gravitational force is a conservative force which means that work done by it, is independent of path followed.
3.
No energy is required.This is because the work done by centripetal force is zero.
4.
The satellite move in air-free regions while the aeroplane has to overcome air resistance.
5.
The bomb would merely act as another satellite.It would never hit the earth due to state of weight lessness.
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