CUET · PHYSICS · PYQ PAPER 2023

Match List - I with List - II.
List 1 List 2
(A) Infra red waves (I) to detect fracture of bones
(B) Radio waves (II) absorbed by the ozone layer of atmosphere
(C) X-rays (III) to treat muscular pain
(D) Ultraviolet rays (IV) for broadcasting

Choose the correct answer from the options given below :

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

Verified Solution

Answer & Solution

Correct Answer

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

Step-by-step Solution

Detailed explanation

(A) Infra red waves - (III) to treat muscular pain: Infrared lamps are often used in physical therapy for heat treatment. (B) Radio waves - (IV) for broadcasting: These longwavelength waves are the standard for radio and TV communication. (C) X-rays - (I) to detect fracture of…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Lens	Focal Length	Aperture
A	100cm	10cm
B	100cm	5cm
C	10cm	2cm
D	5cm	2cm

List - I	List - II
(A) Cleistogamous flowers	(I) Water pollinated flowers
(B) Vallisneria	(II) Tallest flower
(C) Amorphophallus	(III) Dioecious
(D) Papaya	(IV) Do not open at all

List 1	List 2
(A) Infra red waves	(I) to detect fracture of bones
(B) Radio waves	(II) absorbed by the ozone layer of atmosphere
(C) X-rays	(III) to treat muscular pain
(D) Ultraviolet rays	(IV) for broadcasting

Match List - I with List - II.List 1List 2(A) Infra red waves(I) to detect fracture of bones(B) Radio waves(II) absorbed by the ozone layer of atmosphere(C) X-rays(III) to treat muscular pain(D) Ultraviolet rays(IV) for broadcastingChoose the correct answer from the options given below :

Step-by-step Solution