Question

Match List-I with List-II

List-I (Name of Items)	List-II (Approximate Size)
(A) Diameter of Human Hair	(I) 1-10 nm
(B) Size of Quantum Dot	(II) 5 × 10-5 m
(C) Width of M CNT	(III) 50-100 nm
(D) Size of Virus	(IV) 2-4 nm

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (I), (B) - (III), (C) - (IV), (D) - (I)
• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)

Hint:

Relate item sizes logically. For example, hair is macroscopic, while quantum dots, CNTs, and viruses are nanoscale.

Answer 1

The Correct Option is A

Approximate sizes:
- (A) Diameter of human hair is 50 − 100 nm.
- (B) Size of quantum dot is 5 nm.
- (C) Width of MWCNT is 1 − 10 nm.
- (D) Virus size is 2 − 4 nm.