NEET 2024 Question Papers with Solution Explanation | mosaicbro.com

NEET 2024 Question Papers with Solution Explanation

#Neet #2024 #Past NEET 2024 Question Paper with Solution . All MCQs with correct keys.

7 of 50 questions (Page 7 of 8)

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43 Statement I: Atoms are electrically neutral. Statement II: Atoms emit characteristic spectra. Choose the correct answer:
Correct Answer: A
Explanation: Atoms are neutral (equal protons/electrons) and emit unique spectra when excited.
44 Which statements about photons are correct? A: \(E = hν\), B: Speed = c, C: \(p = \frac{hν}{c}\), D: Energy/momentum conserved in collisions, E: Photons have charge.
Correct Answer: B
Explanation: Photons are chargeless (E is incorrect), but A, B, C, D are true.
45 Match hydrogen spectral lines (transitions) with wavelengths: A: n=3→2, B: n=4→2, C: n=5→2, D: n=6→2.
Correct Answer: B
Explanation: Balmer series wavelengths: 656.3 nm (3→2), 486.1 nm (4→2), 434.1 nm (5→2), 410.2 nm (6→2).
46 A 100-turn coil of radius 10 cm carries 7 A current. The magnetic field at its center is:
Correct Answer: C
Explanation: \(B = \frac{μ_0 NI}{2R}\), where \(μ_0 = 4π × 10^{-7} \, \text{SI}\).
47 The output (Y) of the given logic gate is similar to:
Correct Answer: D
Explanation: The truth table matches an AND gate (Y=1 only when A=1 and B=1).
48 A wire of resistance 100Ω is divided into 10 equal parts. First 5 parts in series + next 5 in parallel, then combined in series. The final resistance is:
Correct Answer: B
Explanation: Each part = 10Ω. Series: 50Ω, Parallel: 2Ω. Total = 50Ω + 2Ω = 52Ω.
49 In the nuclear emission sequence \(^{200}_{82}X → Y → Z → P → Q\), the mass and atomic numbers of Q are:
Correct Answer: D
Explanation: Track changes: α-decay (mass↓4, atomic↓2), β⁻-decay (atomic↑1), β⁺-decay (atomic↓1), γ leaves numbers unchanged.
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