The ozone layer in the Earth's atmosphere is essential for the protection of human life because it...
- Acontains ions.
- Breflects radio signals.
- Cabsorbs ultraviolet rays.
- Dreflects infrared rays.
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Similar Questions
If the frequencies of $X$-rays,$\gamma$-rays,and ultraviolet rays are $a, b$,and $c$ respectively,then which of the following is correct?
Medium
View Solution. . . . . . are used in medicine to destroy cancer cells.
Infrared radiation was discovered in $1800$ by
Easy
View SolutionThe frequencies of $\gamma$-rays,$X$-rays,and ultraviolet radiations are $B, A,$ and $C$ respectively. Which of the following relations is correct?
Easy
View SolutionMatch List-$I$ (Wavelength range of electromagnetic spectrum) with List-$II$ (Method of production of these waves) and select the correct option from the options given below the lists:
List-$I$ List-$II$ $(1)$ $700\, nm$ to $1\, mm$ $(i)$ Vibration of atoms and molecules $(2)$ $1\, nm$ to $400\, nm$ $(ii)$ Inner shell electrons in atoms moving from one energy level to a lower level $(3)$ $< 10^{-3}\, nm$ $(iii)$ Radioactive decay of the nucleus $(4)$ $1\, mm$ to $0.1\, m$ $(iv)$ Magnetron valve
| List-$I$ | List-$II$ |
| $(1)$ $700\, nm$ to $1\, mm$ | $(i)$ Vibration of atoms and molecules |
| $(2)$ $1\, nm$ to $400\, nm$ | $(ii)$ Inner shell electrons in atoms moving from one energy level to a lower level |
| $(3)$ $< 10^{-3}\, nm$ | $(iii)$ Radioactive decay of the nucleus |
| $(4)$ $1\, mm$ to $0.1\, m$ | $(iv)$ Magnetron valve |
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