Question

Match List-I with List-II:
 

List-I (Electric field)	List-II (Mobility)
(A) Low electric field	(I) Mobility decreases by \( \frac{1}{E} \)
(B) Medium electric field	(II) Mobility decreases by \( \frac{1}{\sqrt{E}} \)
(C) High electric field	(III) Mobility remains constant

Choose the correct answer:

• (A) – (III), (B) – (II), (C) – (I)
• (A) – (I), (B) – (III), (C) – (II)
• (A) – (II), (B) – (III), (C) – (I)
• (A) – (III), (B) – (I), (C) – (II)

Hint:

At low fields, mobility decreases with increasing electric field, but at high fields, it stabilizes.

Answer 1

The Correct Option is D

- Low field: mobility decreases with \(E\).
- Medium field: mobility decreases by \(1/\sqrt{E}\).
- High field: mobility remains constant.

Final Answer: \[ \boxed{(4)} \]