Electromagnetic Waves Ques 28
28. Which of the following, has the longest wavelength?
[1989]
(a) X-rays
(b) $\gamma$-rays
(c) microwaves
(d) radio waves
Show Answer
Answer:
Correct Answer: 28.(d)
Solution:
- (d) Rays $\quad $ 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 $\quad 10$ to $10^{4}$
BETA
