CUET · PHYSICS · PYQ PAPER 2023

Match List-I with List-II
List-I List-II
(A) Light (I) 1 mm to \(10^{-3} nm\)
(B) Infra-red (II) 700 nm to 400 nm
(C) X-rays (III) 400 nm to 1 nm
(D) UV rays (IV) 1 mm to 700 nm
Choose the correct answer from the options given below :

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

Verified Solution

Answer & Solution

Correct Answer

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

Step-by-step Solution

Detailed explanation

(A) Light (Visible) - (II) 700 nm to 400 nm : This is the narrow band detectable by the human eye. (B) Infra-red - (IV) 1 mm to 700 nm : These wavelengths are longer than visible light, commonly associated with heat. (C) X-rays - (I) 1 nm to \(10^{-3} nm\) : These have extremely…

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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List-I	List-II
(A) Output always opposite of input	(I) NOR
(B) Output 1 only when all inputs are 0	(II) NAND
(C) Output 0 only when all inputs are 1	(III) OR
(D) Output 1 when all inputs are 1	(IV) NOT

List-I	List-II
(A) Light	(I) 1 mm to \(10^{-3} nm\)
(B) Infra-red	(II) 700 nm to 400 nm
(C) X-rays	(III) 400 nm to 1 nm
(D) UV rays	(IV) 1 mm to 700 nm

Match List-I with List-IIList-IList-II(A) Light(I) 1 mm to \(10^{-3} nm\)(B) Infra-red(II) 700 nm to 400 nm(C) X-rays(III) 400 nm to 1 nm(D) UV rays(IV) 1 mm to 700 nmChoose the correct answer from the options given below :

Step-by-step Solution

Match List-I with List-II
List-I List-II
(A) Light (I) 1 mm to \(10^{-3} nm\)
(B) Infra-red (II) 700 nm to 400 nm
(C) X-rays (III) 400 nm to 1 nm
(D) UV rays (IV) 1 mm to 700 nm
Choose the correct answer from the options given below :