What is the wavelength range of visible light?
- A$10 \, \mathring{A}$ to $100 \, \mathring{A}$
- B$4000 \, \mathring{A}$ to $7000 \, \mathring{A}$
- C$8000 \, \mathring{A}$ to $10000 \, \mathring{A}$
- D$10000 \, \mathring{A}$ to $15000 \, \mathring{A}$
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Similar Questions
Match the List-$I$ with List-$II$. Choose the correct answer from the options given below:
List-$I$ List-$II$ $A.$ Radio-wave $I.$ Produced by Magnetron valve $B.$ Micro-wave $II.$ Due to change in the vibrational modes of atoms $C.$ Infrared-wave $III.$ Due to inner shell electrons moving from higher energy level to lower energy level $D.$ $X$-ray $IV.$ Due to rapid acceleration of electrons
| List-$I$ | List-$II$ |
|---|---|
| $A.$ Radio-wave | $I.$ Produced by Magnetron valve |
| $B.$ Micro-wave | $II.$ Due to change in the vibrational modes of atoms |
| $C.$ Infrared-wave | $III.$ Due to inner shell electrons moving from higher energy level to lower energy level |
| $D.$ $X$-ray | $IV.$ Due to rapid acceleration of electrons |
Which of the following are not electromagnetic waves?
Match List-$I$ with List-$II$.
List-$I$ (Electromagnetic waves) List-$II$ (Use) $(a)$ $UV$ rays $(i)$ Diagnostic tool in medicine $(b)$ $X-$rays $(ii)$ Water purification $(c)$ Microwave $(iii)$ Communication,Radar $(d)$ Infrared wave $(iv)$ Improving visibility in foggy days
Choose the correct answer from the options given below:
| List-$I$ (Electromagnetic waves) | List-$II$ (Use) |
| $(a)$ $UV$ rays | $(i)$ Diagnostic tool in medicine |
| $(b)$ $X-$rays | $(ii)$ Water purification |
| $(c)$ Microwave | $(iii)$ Communication,Radar |
| $(d)$ Infrared wave | $(iv)$ Improving visibility in foggy days |
Choose the correct answer from the options given below:
Easy
View SolutionFingerprints on a piece of paper may be detected by sprinkling fluorescent powder on the paper and then looking at it under:
Easy
View SolutionThe ozone layer blocks radiation of which wavelength?
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