Electromagnetic Waves - Result Question 34
34. Which of the following, has the longest wavelength?
[1989]
(a) X-rays
(b) $\gamma$-rays
(c) microwaves
(d) radio waves
(c) $\gamma$-rays
(d) $\beta$-rays
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Solution:
- (d) Rays Wavelength
[Range in $m$ ]
X-rays $\quad 1 \times 10^{-11}$ to $3 \times 10^{-8}$
$\gamma$-rays $\quad 6 \times 10^{-14}$ to $1 \times 10^{-11}$
Microwaves $\quad 10^{-3}$ to 0.3
Radio waves 10 to $10^{4}$
