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.

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1 If the monochromatic source in Young's double slit experiment is replaced by white light, then:
Correct Answer: C
Explanation: White light produces a central white fringe (all wavelengths constructively interfere) with colored fringes due to wavelength-dependent path differences.
2 At any instant t, the displacement of a particle is \(2t - 1\) (SI unit) under a 5N force. The instantaneous power is:
Correct Answer: A
Explanation: Power \(P = F × v\), where velocity \(v = \frac{dx}{dt} = 2 \, \text{m/s}\). Thus, \(P = 5 × 2 = 10 \, \text{W}\).
3 For a solar cell and reverse-biased pn junction diode: A: I-V in IV quadrant. B: Reverse current due to majority carriers. Choose the correct answer:
Correct Answer: A
Explanation: Solar cells operate in IV quadrant (power generation). Reverse bias current is due to minority carriers (B is false).
4 Two bodies A (velocity \(v_1\)) and B (at rest) collide inelastically. Post-collision velocity is \(v_2\). The ratio \(v_1 : v_2\) is:
Correct Answer: B
Explanation: In inelastic collisions: \(m v_1 = (m + m) v_2 \Rightarrow v_1 : v_2 = 2 : 1\).
5 A light ray enters a right-angled prism at 30° (as shown), travels parallel to base BC, and emerges along AC. The refractive index is:
Correct Answer: B
Explanation: Using Snell's law at incidence and emergence points with geometry constraints gives \(μ = \frac{\sqrt{5}}{2}\).
6 The graph showing variation of \(\frac{1}{λ^2}\) with kinetic energy (E) for a free particle's de Broglie wavelength (λ) is:
Correct Answer: D
Explanation: \(λ = \frac{h}{p}\) and \(E = \frac{p^2}{2m}\), so \(\frac{1}{λ^2} ∝ E\). Graph is linear but may have intercepts.
7 Quantities with the same dimensions as solid angle are:
Correct Answer: A
Explanation: Solid angle, plane angle, and strain are all dimensionless quantities.
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