PART - 1 CH - 3 Motion in a Plane — Physics STD 11 Science — Question

At what angle should a ball be thrown so that its horizontal range is maximum?

An observer on the seashore sees waves reaching the shore, what type of waves does the observer see? Why?

Give Kelvin-Planck's statement of the second law of thermodynamics.

Can water be made to boil without heating?

If a person is standing at the upper end or the lower end of a ladder, when will the possibility of the ladder slipping be greater?

What has the height capacity for diffusion?

Why does a heavy rifle not kick as strongly as a light rifle using the same cartridges?

Why should a thermometer bulb have a small heat capacity?

A metallic bob A oscillates through the space between the poles of an electromagnet. The oscillations are more quickly damped when the circuit is on, as compared to the case when the circuit is off. Explain.

Is a vector necessarily changed if it is rotated through an angle?