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24 January Evening Shift physics questions with solutions
Browse 24 January Evening Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 24 questions
- MCQeasyCurrent electricity
A moving coil galvanometer of resistance 100 Ω shows a full scale deflection for a current of 1 mA. The value of resistance required to convert this galvanometer into an ammeter, showing full scale deflection for a current of 5 mA, is _____ Ω
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumRotational Motion
A thin uniform rod (X) of mass M and length L is pivoted at a height L/3 as shown in the figure. The rod is allowed to fall from a vertical position and lie horizontally on the table. The angular velocity of this rod when it hits the table top, is_______.
(g = gravitational acceleration)
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JEE Mains 202624 January Evening Shift
Open question & full solution → - NumericeasyCurrent electricity
In a meter bridge experiment to determine the value of unknown resistance, first the resistances 2 Ω and 3 Ω are connected in the left and right gaps of the bridge and the null point is obtained at a distance l cm from the left. Now when an unknown resistance x Ω is connected in parallel to 3 Ω resistance, the null point is shifted by 10 cm to the right of wire. The value of unknown resistance x is ___ Ω.
JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumNewtons law of motion and Friction
A flexible chain of mass m hangs between two fixed points at the same level. The inclination of the chain with the horizontal at the two points of support is 30°. Considering the equilibrium of each half of the chain, the tension of the chain at the lowest point is _____.
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQeasyUnit dimension and error
In a vernier callipers, 50 vernier scale divisions are equal to 48 main scale divisions. If one main scale division = 0.05 mm, then the least count of the vernier callipers is _____mm.
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumWork , Power and Energy
In case of vertical circular motion of a particle by a thread of length r if the tension in the thread is zero at an angle 30° shown in figure, the velocity at the bottom point (A) of the circular path is
(g = gravitational acceleration)
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQeasyFluid Mechanics
A cubical block of density ρb = 600 kg/m³ floats in a liquid of density ρe = 900 kg/m³. If the height of block is H = 8.0 cm then height of the submerged part is _____ cm.
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumNuclear physics
The binding energy for the following nuclear reactions are expressed in MeV.
³₂He + ¹₀n → ⁴₂He + 20 MeV
⁴₂He + ¹₀n → ⁵₂He - 0.9 MeV
If X₃, X₄, X₅ denote the stability of ³₂He, ⁴₂He and ⁵₂He, respectively, then the correct order is :
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumCapacitor
The reading of the ammeter (A) in steady state in the following circuit (assuming negligible internal resistance of the ammeter) is ________A.
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JEE Mains 202624 January Evening Shift
Open question & full solution → - IntegermediumElectrostatic
A point charge q = 1 μC is located at a distance 2 cm from one end of a thin insulating wire of length 10 cm having a charge Q = 24 μC, distributed uniformly along its length, as shown in figure. Force between q and wire is ____ N.
(Use 1/(4πε₀) = 9 × 10⁹ N·m²/C²)
JEE Mains 202624 January Evening Shift
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