JEE Main 2014 — Electromagnetic Waves Question with Solution

Based on the given information, let's match the items from List I with their corresponding descriptions in List II :

(a) Range : 700 nm to 1 mm

Match : (i) Vibration of atoms and molecules

(b) Range : 1 nm to 400 nm

Match : (ii) Inner shell electrons in atoms moving from one energy level to a lower level

(c) Range : <10^-3 nm

Match : (iii) Radioactive decay of the nucleus

(d) Range : 1 mm to 0.1 m

Match : (iv) Magnetron valve

Therefore, the correct matches are :

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv).