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

Which of the folowing is equivalent to tesla ?

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

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

One of the properties associated with X-rays is that they can be deflected by

What is the unit of measure of magnetic field ?