JEE Mains 2026 6 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• MCQeasyWork , Power and Energykinetic enegy and work engery theorem

  A raindrop of mass 1 g starts from rest at a height of 1 km above the ground. It reaches the ground with a speed of 5 m·s⁻¹. Taking g = 10 m·s⁻², what is the work done by the unknown resistive force during the fall?

  Options

  • Option A

    -8.75 J

  • Option B

    -8.35 J

  • Option C

    -9.55 J

  • Option D

    -9.98 J

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• MCQmediumNewtons law of motion and Frictiontwo and more than two block problem in friction

  Two blocks P and Q of masses 2 kg and 1.5 kg, respectively, are connected by a massless string passing over a frictionless pulley fixed at the upper edge of a cube S, as shown in the figure. Block P lies on the frictionless horizontal top surface of the cube, while block Q remains in contact with the vertical side surface, where the coefficient of friction is μ. The cube accelerates horizontally to the right with acceleration g/2. During this motion both P and Q remain stationary relative to the cube. Taking g = 10 m·s⁻², find μ.

  

  Options

  • Option A

    0.33

  • Option B

    0.67

  • Option C

    1.00

  • Option D

    0.50

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• MCQeasyWave Opticsinterferece of light and huygen principle

  Q40. A point light source emits electromagnetic waves uniformly into free space. A detector at distance L from the source measures intensity I₀. The detector is then moved to another point on the same spherical surface centred on the source such that the angular separation between the original and new detector positions is 45°. What intensity is measured at the new location?

  Options

  • Option A

    I₀ /4

  • Option B

    I₀

  • Option C

    I₀ /√2

  • Option D

    I₀ /2

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• MCQmediumWork , Power and Energyvertical circular motion

  A smooth inclined track ends in a vertical circular loop of radius R, as shown in the figure. A small body is released from rest from a height h above the lowest point of the loop. At the highest point of the loop, the body exerts a normal force on the track equal to three times its weight. If h = αR, what is the value of α?

  

  Options

  • Option A

    2

  • Option B

    4

  • Option C

    3

  • Option D

    6

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• NumericmediumThermodyanmicsthermodynmic process and work done

  A gas is compressed isothermally to one-third of its initial volume. The initial volume is 3 litres, and the stated bulk modulus is 3×10⁵ N·m⁻². Following the interpretation used in the given solution, take this bulk modulus as the initial isothermal bulk modulus. Find the magnitude of the work done on the gas in joules, to the nearest integer.

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• NumericmediumNuclear physicsNucles and its density radius and mass defect ,binding energy and its curve

  A mass of (7/17.13) kg of ⁷₃Li is completely converted into ⁴₂He through proton bombardment according to the reaction ⁷₃Li + ¹₁H → 2⁴₂He. The total energy released is α×10³² eV. Given: mass of ⁷₃Li = 7.0183 u, mass of ⁴₂He = 4.004 u, mass of proton = 1.008 u, 1 u = 931 MeV·c⁻², and Avogadro number = 6.0×10²³ mol⁻¹. Find the nearest integer value of α.

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• MCQeasyAc Cirucuitsseries combination of ac circuit and L-C-R circuit

  Q45. A series LCR circuit is driven by an rms voltage of 90 V at frequency 30 Hz. At this frequency the circuit has resistance R = 80 Ω, inductive reactance $X_{L}$= 20 Ω and capacitive reactance $X_{C}$ = 80 Ω. What is the power factor of the circuit?

  Options

  • Option A

    0.80

  • Option B

    0.64

  • Option C

    0.90

  • Option D

    0.50

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• MCQeasyUnit dimension and errorError and its addition ,subtraction,multipication and division

  The density ρ of a uniform cylinder is determined by measuring its mass m, length l and diameter d. The measured values are m = 97.42 ± 0.02 g, l = 8.35 ± 0.05 mm and d = 20.20 ± 0.02 mm. What is the calculated percentage fractional error in ρ?

  Options

  • Option A

    0.63%

  • Option B

    0.82%

  • Option C

    0.72%

  • Option D

    0.25%

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• MCQmediumsemiconductorapplication of diode and zener breakdown

  Q39. The maximum rated power of the LED in the circuit shown in the figure is 2 mW, and the input voltage is 5 V. The current through the series resistance Rₛ is 0.5 mA. What is the minimum value of Rₛ required to ensure that the LED is not damaged?

  

  Options

  • Option A

    6 kΩ

  • Option B

    2 kΩ

  • Option C

    4 kΩ

  • Option D

    5 kΩ

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• MCQmediumRotational Motiontorque and rotational equilibrium

  Q31. A solid sphere of radius 4 cm and mass 5 kg rotates about an axis through its centre with angular speed 1200 rpm. A constant opposing torque brings the sphere to rest in 10 s. What are, respectively, the magnitude of the applied torque and the number of revolutions completed before coming to rest?

  Options

  • Option A

    0.128π N·m and 100

  • Option B

    0.0128π N·m and 50

  • Option C

    0.128π N·m and 50

  • Option D

    0.0128π N·m and 100

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