CUET · PHYSICS · PYQ PAPER 2023

The magnetic susceptibility of material is \( \chi = -1 \) and relative magnetic permeability is zero. Then the type of material is

A Paramagnetic
B Ferromagnetic
C Diamagnetic
D Electromagnetic

Verified Solution

Answer & Solution

Correct Answer

(C) Diamagnetic

Step-by-step Solution

Detailed explanation

Given \( \chi = -1 \). For diamagnetic materials, \( -1 \le \chi < 0 \). The material is Diamagnetic.

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.

Same subject

Match List-I with List-II

List-I (AC Circuit)	List-II (Phase Angle)
(A) Phase Difference between current and voltage in a pure inductive ac circuit	(I) zero
(B) Phase Difference between current and voltage in a pure resistive ac circuit	(II) \( \pi/2 \), current lags voltage
(C) Phase Difference between current and voltage in a pure capacitive ac circuit	(III) \( \tan^{-1}(\frac{X_L - X_C}{R}) \)
(D) Phase Difference between current and voltage in a series LCR circuit	(IV) \( \pi/2 \), current leads voltage

Choose the correct answer from the options given below:

CUET 2023 Easy

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