Match List-I with List-II
| List-I (Wavelength) | List-II (Electromagnetic wave) |
| (A) 500 nm | (I) Infrared |
| (B) 280 nm | (II) Microwave |
| (C) 800 nm | (III) Ultraviolet |
| (D) 30 mm | (IV) Visible light |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
Each band of the electromagnetic spectrum covers a range of wavelengths: ultraviolet below about 400 nm, visible light from about 400 nm to 700 nm, infrared from about 700 nm to 1 mm, and microwaves from about 1 mm to 0.1 m.
(A) 500 nm — this matches (IV) Visible light. 500 nm lies inside the visible range (it is green light).
(B) 280 nm — this matches (III) Ultraviolet. It is shorter than the violet end of the visible range at about 400 nm.
(C) 800 nm — this matches (I) Infrared. It lies just beyond the red end of the visible range at about 700 nm.
(D) 30 mm — this matches (II) Microwave. 30 mm = 0.03 m lies between 1 mm and 0.1 m.
NCERT (2026-27):
Gamma Rays – …
