Neet physics questions with solutions

Showing 1–10 of 4657 questions

• MCQmediumFluid Mechanicsequation of continuity and bornullie theorem

  A horizontal Venturimeter carries water. The inlet and throat cross-sectional areas are 4 cm² and 2 cm², respectively. A differential mercury manometer connected between the inlet and throat shows a mercury-level difference of 3.0 cm. Take ρ(Hg) = 13600 kg/m³, ρ(water) = 1000 kg/m³ and g = 10 m/s². What is the volume-flow rate through the Venturimeter?

  Options

  • Option A

    3.2 × 10⁻⁴ m³/s

  • Option B

    4.8 × 10⁻⁴ m³/s

  • Option C

    6.35 × 10⁻⁴ m³/s

  • Option D

    1.27 × 10⁻³ m³/s

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• MCQmediumMathematical tools and vectorDifferentiation

  Differentiate y = 1/√[sin(eˣ)].

  Options

  • Option A

    -eˣcos(eˣ)/[2(sin(eˣ))³ᐟ²]

  • Option B

    1/√[sin(eˣ)]

  • Option C

    -(-eˣcos(eˣ)/[2(sin(eˣ))³ᐟ²])

  • Option D

    0

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• MCQmediumElectromagnetic Induction

  A long straight wire lies along the axis of a circular ring of radius R. The mutual inductance of the wire-ring system is:

  Options

  • Option A

    µ₀R/2

  • Option B

    µ₀πR/2

  • Option C

    µ₀/2

  • Option D

    0

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• MCQmediumGeometrical opticsapparent depth and shift due to slab

  A coin is below two plane-parallel liquid layers. The upper layer is 8 cm thick with refractive index 4/3 and the lower layer is 6 cm thick with refractive index 3/2. When viewed normally from air, what is the apparent depth from the upper surface?

  Options

  • Option A

    10.00 cm

  • Option B

    14.00 cm

  • Option C

    4.00 cm

  • Option D

    19.67 cm

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• MCQmediumKinematics part-3 Relative motionRelative motion in 2-D and shortest distance problem

  Two straight roads intersect at O making angle α. Cars A and B are initially distances L₁ and L₂ from O and approach O with speeds v₁ and v₂. The unrestricted closest-approach time is:

  Options

  • Option A

    (L₁v₁+L₂v₂)/(v₁²+v₂²)

  • Option B

    [L₁v₁+L₂v₂-(L₁v₂+L₂v₁)cosα]/[v₁²+v₂²-2v₁v₂cosα]

  • Option C

    (L₁+L₂)/(v₁+v₂)

  • Option D

    (L₁v₂+L₂v₁)/(v₁v₂)

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• MCQmediumCircular Motionfriction and circular motion

  A banked road is designed for speed v₀ such that no friction is required. If a vehicle moves with speed v > v₀, the static friction on the tyres acts:

  Options

  • Option A

    Up the slope

  • Option B

    Down the slope

  • Option C

    Horizontally outward

  • Option D

    It must remain zero

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• MCQmediumWave Opticsdiffraction of light

  For the first secondary maximum of a single-slit Fraunhofer diffraction pattern, which approximate pair is correct?

  Options

  • Option A

    a sinθ ≈ 1.43λ and I ≈ 0.047I₀

  • Option B

    a sinθ = 1.50λ and I ≈ 0.50I₀

  • Option C

    a sinθ = 2λ and I ≈ 0.25I₀

  • Option D

    a sinθ = 0.50λ and I ≈ 0.047I₀

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• NumericmediumWork , Power and Energyquestion based on work

  A particle moves along the x-axis from x = 0 to x = 4 m under a position-dependent force F(x) = 3x² - 4x + 5 N. If the work done is N joule, find N.

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• MCQmediumElectromagnetic wavedisplacement current and properties of electromagnetic wave

  For a plane electromagnetic wave in vacuum, which pair of relations is correct?

  Options

  • Option A

    E/B = c and E/H = √(μ₀/ε₀)

  • Option B

    E/B = 1/c and E/H = √(ε₀/μ₀)

  • Option C

    E/B = c and E/H = c

  • Option D

    E/B = μ₀c and E/H = 1

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• NumericeasyElectromagnetic wavedisplacement current and properties of electromagnetic wave

  An electromagnetic wave has wavelength 600 nm in vacuum. It enters a transparent medium of refractive index 1.5. If its wavelength in the medium is N nm, find N.

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