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A constant retarding force of 60 N is applied to a body of mass 25 kg moving initially with a speed of 12 m s–1. How long does the body...
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
Which of the following is not a natural polymer?
A capacitor filled with dielectric constant K is connected to a battery. If dielectric is removed, how much charge flows back?
The functioning of a quartz crystal in a watch is based on which principle?
The distance between the focus and the centre of curvature of a spherical mirror in terms of the radius of curvature R, is equal to:
For a non-relativistic particle, the ratio of phase velocity to group velocity of de Broglie waves is:
Which of the following gas is used in the manufacture of Vanaspati Ghee?
In which medium can sound not travel?
When a cannonball is fired, its motion is an example of which type of motion?