PART - 1 CH - 6 System of Particles and Rotational Motion — Physics STD 11 Science — Question

Which is greater: nuclear force or electrostatic force?

What is the apparent weight of a man of 60kg who is standing in a lift which is moving up with a uniform speed?

Person sitting in a moving bus in uniform motion fall forward when sudden break is applied. It is due to ________.

What are the two conditions when a real gas follow the ideal gas equation PV = nRT?

Name the scientist and the country of his origin whose field of work was 'elasticity'.

A wire of length L and cross-sectional area A is made of material of Young's modulus Y. What is the work done in stretching the wire by an amount x?

A ball is thrown in horizontal direction from the top of a tower and another ball is dropped from the top of same tower. What will be the time difference between both the balls to reach the earth?

If the mass M is hung on a spring and it gets extended a distance x. What will be the magnitude of the force constant of that spring?

What do you mean by order of magnitude? Explain.

Is it possible to have length and velocity both as fundamental quantities? Why?