Question

Arrange the following in the ascending order of wavelength:
(A) Gamma rays (\( \lambda_1 \))
(B) X-ray (\( \lambda_2 \))
(C) Infrared waves (\( \lambda_3 \))
(D) Microwaves (\( \lambda_4 \))
Choose the most appropriate answer from the options given below:

• A. \( \lambda_4<\lambda_3<\lambda_1<\lambda_2 \)
• B. \( \lambda_4<\lambda_3<\lambda_2<\lambda_1 \)
• C. \( \lambda_1<\lambda_2<\lambda_3<\lambda_4 \)
• D. \( \lambda_2<\lambda_1<\lambda_4<\lambda_3 \)

Answer 1

The Correct Option is C

To order the given electromagnetic waves by wavelength, shortest to longest, refer to the electromagnetic spectrum. The spectrum, from shortest to longest wavelength, is: Gamma rays, X-rays, Ultraviolet, Visible light, Infrared waves, Microwaves, Radio waves.

• Gamma rays
• X-rays
• Ultraviolet (not part of the question, but included for context)
• Visible light (not part of the question, but included for context)
• Infrared waves
• Microwaves
• Radio waves (not part of the question, but included for context)

Arranging the specified waves by increasing wavelength yields:

1. Gamma rays (\(\lambda_1\))
2. X-rays (\(\lambda_2\))
3. Infrared waves (\(\lambda_3\))
4. Microwaves (\(\lambda_4\))

This sequence is represented as: \(\lambda_1<\lambda_2<\lambda_3<\lambda_4\)

Therefore, the correct answer is: \(\lambda_1<\lambda_2<\lambda_3<\lambda_4\)