Waves — Physics STD 11 — Question

The center of mass of a solid cone along the line from the center of the base to the vertex is at –

An object is moving in a straight line with uniform acceleration, the velocity-displacement reflation is –

The temperature on the new scale, corresponding to a temperature of 39°C on the Celsius scale?

As astronaut orbiting the earth in a circular orbit 120 km above the surface of Earth, gently drops a spoon out of space-ship. The spoon will ……….

A box is dragged across a surface by a rope which makes an angle 45° with the horizontal. The tension in the rope is 100 N when the box is dragged 10 m. The work done is

Rotational kinetic energy is given by –

The numbers 3.665 and 3.635 on rounding off to 3 significant figures will give

If a block of mass m lying on a frictionless inclined plane of length L height h and angle of inclination θ, then the velocity at its bottom is –

For bodies of regular shape and uniform mass distribution, the center of mass is at –

The speed of a wave in a medium is 760 m/s. If 3600 waves are passing through a point in the medium in 2 minutes, then its wavelength is ……