Which of the folowing is equivalent to tesla ?

Which of the following radiation is used to get relief from body aches ?

What is the unit of measure of magnetic field ?

At magnetic poles, the angle of dip is

The rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field is :

Arrange the following electromagnetic radiations in decreasing order of their frequencies. 1. Gamma rays 2. Ultraviolet rays 3. Radio waves 4. X-rays