SATHEE: Electromagnetic Waves - Result Question 31

Electromagnetic Waves - Result Question 31

31. Which one of the following electromagnetic radiations has the smallest wavelength? [1994]

(a) ultraviolet waves

(b) X-rays

(d) microwaves

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Answer:

Correct Answer: 31. (c)

Solution:

[Range in $m$ ]

$X$ -rays $1 \times 10^{- 11}$ to $3 \times 10^{- 8}$

$γ$ -rays $6 \times 10^{- 14}$ to $1 \times 10^{- 11}$

Microwaves $10^{- 3}$ to 0.3

Radiowaves 10 to $10^{4}$

Wavelength of U.V. Rays ranges from

$6 \times 10^{- 8}$ to $4 \times 10^{- 7}$ .

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Electromagnetic Waves - Result Question 31

31. Which one of the following electromagnetic radiations has the smallest wavelength? [1994]

Answer:

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