Free physics question bank
21 January Morning Shift physics questions with solutions
Browse 21 January Morning Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 25 questions
- MCQmediumGravitation
Initially a satellite of 100 kg is in a circular orbit of radius 1.5Rₑ. This satellite can be moved to a circular orbit of radius 3Rₑ by supplying α × 10⁶J of energy. The value of α is ___________.
(Take Radius of Earth Rₑ = 6 × 10⁶ m and g = 10 m·s⁻²)
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JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumsemiconductor
The given circuit works as :
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JEE Mains 202621 January Morning Shift
Open question & full solution → - NumericeasyThermodyanmics
10 mole of oxygen is heated at constant volume from 30°C to 40°C. The change in the internal energy of the gas is _______ cal. (The molecular specific heat of oxygen at constant pressure, Cₚ = 7 cal.·mol⁻¹·°C⁻¹ and R = 2 cal.·mol⁻¹·°C⁻¹.)
JEE Mains 202621 January Morning Shift
Open question & full solution → - NumericmediumCurrent electricity
The heat generated in 1 minute between points A and B in the given circuit, when a battery of 9V with internal resistance of 1 Ω is connected across these points is _________ J.
JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumWork , Power and Energy
Potential energy (V) versus distance (x) is given by the graph, Rank various regions as per the magnitudes of the force (F) acting on a particle from high to low.
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JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumRotational Motion
A uniform rod of mass m and length l suspended by means of two identical inextensible light strings as shown in figure. Tension in one string immediately after the other string is cut, is _______. (g acceleration due to gravity)
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JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQeasyUnit dimension and error
In an experiment the values of two spring constants were measured as k₁ = (10 ± 0.2) N·m⁻¹ and k₂ = (20 ± 0.3) N·m⁻¹. If these springs are connected in parallel, then the percentage error in equivalent spring constant is :
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JEE Mains 202621 January Morning Shift
Open question & full solution → - NumericmediumRotational Motion
Two identical thin rods of mass M kg and length L m are connected as shown in figure. Moment of inertia of the combined rod system about an axis passing through point P and perpendicular to the plane of the rods is
x ─── 2 ML² kg m².
The value of x is __________.
JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumWave Motion
Two strings (A, B) having linear densities = 2 × 10⁻⁴ kg·m⁻¹ and = 4 × 10⁻⁴ kg·m⁻¹ and lengths L₍ᴀ₎ = 2.5 m and L₍ʙ₎ = 1.5 m respectively are joined. Free ends of A and B are tied to two rigid supports C and D, respectively creating a tension of 500 N in the wire. Two identical pulses, sent from C and D ends, take time t₁ and t₂, respectively, to reach the joint. The ratio t₁ ─── t₂ is :
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JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumCapacitor
A parallel plate capacitor has capacitance C, when there is vacuum within the parallel plates.
A sheet having thickness ( 1 ─── 3 )rd of the separation between the plates and relative permittivity K is introduced between the plates. The new capacitance of the system is :
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JEE Mains 202621 January Morning Shift
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