What should be the length of second pendulum of Guawahati.

What is second pendulum?

You are asked to prepare open organ pipe having fundamental frequency 240.What should be the length of the pipe?[velocity of sound in air =330 m/sec)

The bQB of a pendulum is released from a horizontal position. If the length of the pendulum is 1.5 m, what is the speed with which the bQB arrives at the lowermost point, given that it dissipated 5% of its initial energy against air resistance?

State the laws of a simple pendulum.

The work function of a metal is 3.45 eV. Calculate what should be the maximum wave length of a photon that can eject photo - electron from the metal.

We wish to obtain an erect image of an object, using a concave mirror of focal length 15cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.

What is the length of the radius of the earth?