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22 January Morning Shift physics questions with solutions
Browse 22 January Morning Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 24 questions
- MCQmediumsemiconductor
Find the correct combination of A, B, C and D inputs which can cause the LED to glow.
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumNuclear physics
The minimum frequency of photon required to break a particle of mass 15.348 amu into 4α particles is ____ kHz.
[mass of He nucleus = 4.002 amu, 1 amu = 1.66 × 10⁻²⁷ kg, h = 6.6 × 10⁻³⁴ J.s and c = 3 × 10⁸ m/s]
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumAtomic Structure and X-rays
7.9 MeV α-particle scatters from a target material of atomic number 79. From the given data the estimated diameter of nuclei of the target material is (approximately)________m.
[1/(4πε₀) = 9 × 10⁹ Nm²/C² and electron charge = 1.6 × 10⁻¹⁹ C]
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumCurrent electricity
A meter bridge with two resistances R₁ and R₂ as shown in figure was balanced (null point) at 40 cm from the point P. The null point changed to 50 cm from the point P, when 16 Ω resistance is connected in parallel to R₂. The values of resistances R₁ and R₂ are______.
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumGravitation
The escape velocity from a spherical planet A is 10 km/s. The escape velocity from another planet B whose density and radius are 10% of those of planet A, is______m/s.
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
Three identical coils C₁, C₂ and C₃ are closely placed such that they share a common axis. C₂ is exactly midway. C₁ carries current I in anti-clockwise direction while C₃ carries current I in clockwise direction. An induced current flows through C₂ will be in clockwise direction when
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
XPQY is a vertical smooth long loop having a total resistance R where PX is parallel to QY and separation between them is l. A constant magnetic field B perpendicular to the plane of the loop exists in the entire space. A rod CD of length L (L > l) and mass m is made to slide down from rest under the gravity as shown in figure. The terminal speed acquired by the rod is_________m/s.
(g = acceleration due to gravity)
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQeasyGeometrical optics
Consider an equilateral prism (refractive index √2). A ray of light is incident on its one surface at a certain angle i. If the emergent ray is found to graze along the other surface then the angle of refraction at the incident surface is close to ____.
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQeasyElectrostatics
A simple pendulum has a bob with mass m and charge q. The pendulum string has negligible mass. When a uniform and horizontal electric field E is applied, the tension in the string changes. The final tension in the string, when pendulum attains an equilibrium position is _____.
(g : acceleration due to gravity)
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JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumThermodyanmics
The volume of an ideal gas increases 8 times and temperature becomes (1/4)th of initial temperature during a reversible change. If there is no exchange of heat in this process (ΔQ = 0) then identify the gas from the following options (Assuming the gases given in the options are ideal gases) :
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JEE Mains 202622 January Morning Shift
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