What value should come in the place of (?) in the

'Shock-absorbers are usually made of steel as it –

If the Earth stopped rotating, what would happen to the apparent value of gravity (g) at different locations?

A particle with charge q = 2 μC moves through a magnetic field B = 0.5 T with velocity v = 4 m/s at angle 60°. Find magnitude of magnetic force.

What is the electrical charge of a neutrino?

A light ray enters a glass slab from air at 60° incidence. If refractive index of glass is √3, what is angle of refraction?

The group velocity of matter waves associated with a moving particle is:

A uranium nucleus undergoes fission and releases 200 MeV per event. If 1 gram undergoes complete fission, the energy released in kWh is:

An object is projected vertically upward from Earth's surface with speed 

The density of water is maximum at which temperature?

What is the principle behind the working of a transformer?