Electromagnetic Waves - Result Question 30

30. The frequencies of X-rays, γ-rays and ultraviolet rays are respectively a,b, and c. Then [2000]

(a) a<b,b<c

(b) a<b,b>c

(c) a>b,b>c

(d) a>b,b<c

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Solution:

  1. (b) γ rays has lowest wavelength and highest frequency among them while ultraviolet ray has highest wavelength and lowest frequency.

Order of frequency : b>a>c



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