Infrared rays can be detected by .......

Which electromagnetic waves are used in the medical field to destroy cancer cells?

Both $X$-rays and $\gamma$-rays are electromagnetic waves. Which of the following statements is true for them?

Fingerprints on a piece of paper may be detected by sprinkling fluorescent powder on the paper and then looking at it under:

What are called heat waves?

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 |