$A$ radar sends waves towards a distant object and receives the signal reflected by the object. These waves are:

Write the range of frequencies for radio waves and $FM$ band radio.

Match the electromagnetic radiations given in List-$I$ with their uses given in List-$II$.
| List-$I$ | List-$II$ |
| :--- | :--- |
| $A$) $X$-rays | $P$) Remote switches |
| $B$) $UV$-rays | $Q$) Finger prints in forensic labs |
| $C$) Radio waves | $R$) Crystal structure study |
| $D$) $IR$-rays | $S$) $TV$ communication system |

The electromagnetic waves with wavelengths $10^7 \ m$,$10^{-10} \ m$,and $10^{-7} \ m$ belong to which categories respectively?

Which of the following can be used in cancer treatment?

Which of the following is absorbed by the ozone layer?