Waves of special frequencies are used for cleaning hard to reach places. Name the waves.

High frequency waves are:

Transverse waves of the same frequencies are generated in two steel wires A and B .The diameter of A is twice that of B and the tension in A is half that in B.the ratio f the velocities of waves in A and B is:

Name the electromagnetic waves that have frequencies greater than those of ultraviolet light but less than those of gamma rays.

Name the e.m. waves which are used for the treatment of certain forms of cancer. Write their frequency range.

The pattern of standing waves formed on a stretched string at two instants of time are shown in the figure.The velocity of two waves superimposing to form stationary waves in 360ms^(-1) and their frequencies are 256 Hz. Mark nodes and antinodes on the curve.