Match List-I with List-II
| List-I | List-II | ||
|---|---|---|---|
| (EM waves) | (Wavelength Range) | ||
| (A) | Gamma rays | (I) | \( 0.1 \) m to \( 1 \) mm |
| (B) | Microwaves | (II) | \( 1 \) nm to \( 10^{-3} \) nm |
| (C) | Ultraviolet rays | (III) | \( \lt 10^{-3} \) nm |
| (D) | X-rays | (IV) | \( 400 \) nm to \( 1 \) nm |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
The electromagnetic spectrum in order of decreasing wavelength: radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays.
(A) Gamma rays — this matches (III) \( \lt 10^{-3} \) nm. Gamma rays have the shortest wavelengths of the whole spectrum.
(B) Microwaves — this matches (I) 0.1 m to 1 mm. Microwaves lie just below radio waves in wavelength.
(C) Ultraviolet rays — this matches (IV) 400 nm to 1 nm. UV starts where visible light ends, at about 400 nm.
(D) X-rays — this matches (II) 1 nm to \( 10^{-3} \) nm. X-rays lie between ultraviolet and gamma rays.
NCERT (2026-27):
Gamma Rays – …
