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JEE Mains 2024 01 Feb Morning Shift physics questions with solutions
Browse JEE Mains 2024 01 Feb Morning Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 28 questions
- MCQmediumGravitation
If R is the radius of the earth and the acceleration due to gravity on the surface of earth is g = π² m s⁻², then the length of the seconds pendulum at a height h = 2R from the surface of earth will be:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQmediumPhotoelectric effect and dual nature of matter
The de Broglie wavelengths of a proton and an α-particle are λ and 2λ respectively. The ratio of the velocities of proton and α-particle will be:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - NumericmediumFluid Mechanics
A plane is in level flight at constant speed and each of its two wings has an area of 40 m². If the speed of air is 180 km h⁻¹ over the lower wing surface and 252 km h⁻¹ over the upper wing surface, the mass of the plane is ______ kg. [Take air density = 1 kg m⁻³ and g = 10 m s⁻²]
JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQmediumNewtons law of motion and Friction
Consider the block and trolley system shown in the figure. If the coefficient of kinetic friction between the trolley and the surface is 0.04, the acceleration of the system in m s⁻² is: [The string is massless and unstretchable; the pulley is massless and frictionless.]
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQmediumCurrent electricity
The reading in the ideal voltmeter V shown in the given circuit diagram is:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQeasyCurrent electricity
A galvanometer has a resistance of 50 Ω and allows a maximum current of 5 mA. It can be converted into a voltmeter to measure up to 100 V by connecting in series a resistor of resistance:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQeasyElectromagnetic wave
A parallel plate capacitor has capacitance C = 200 pF. It is connected to a 230 V AC supply with angular frequency 300 rad s⁻¹. The rms values of conduction current in the circuit and displacement current in the capacitor respectively are:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - NumericeasyCurrent electricity
The current in a conductor is expressed as I = 3t² + 4t³, where I is in ampere and t is in second. The amount of electric charge that flows through a section of the conductor during t = 1 s to t = 2 s is ______ C.
JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQmediumCapacitor
Two identical capacitors have the same capacitance C. One is charged to potential V and the other to potential 2V. Their negative ends are connected together. When the positive ends are also joined together, the decrease in energy of the combined system is:
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JEE Mains 2024 01 Feb Morning Shift
Open question & full solution → - MCQmediumWave Optics
A monochromatic light of wavelength 6000 Å is incident on a single slit of width 0.01 mm. If the diffraction pattern is formed at the focus of a convex lens of focal length 20 cm, the linear width of the central maximum is:
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JEE Mains 2024 01 Feb Morning Shift
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