Question

Match List - I with List - II

List - I		List - II
a	UV rays	i	Diagnostic tool in medicine
b	X-rays	ii	Water purification
c	Microwave	iii	Communication,Radar
d	Infrared wave	iv	Improving visibilityin foggy days

Choose the correct answer from the options given below :

• A. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
• B. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
• C. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
• D. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)

Answer 1

Answer: (B)

(a) uv rays - used for water purification
(b) x-rays used for diagnosing fracture
(c) Microwaves are used for mobile and radar communication
(d) Infrared waves show less scattering therefore used in foggy days
(a - ii), (b - i), (c - iii), (d - iv)