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QJEE MAIN 2024
During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio of $\frac{c_p}{c_v}$...
JEE MainPhysicsHard
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QJEE MAIN 2024
Primary side of a transformer is connected to 230 V,50 Hz supply. Turns ratio of primary to secondary winding is 10:1. Load resistance connected to...
JEE MainPhysicsEasy
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QJEE MAIN 2024
If mass is written as $\mathrm{m}=\mathrm{kc}^{\mathrm{P}} \mathrm{G}^{-1 / 2} \mathrm{~h}^{1 / 2}$ then the value of P will be : (Constants have their usual meaning...
JEE MainPhysicsHard
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QJEE MAIN 2024
A particle of charge ${ }^{\prime}-q$ ' and mass ${ }^{\prime} m$ ' moves in a circle of radius ${ }^{\prime} r$ ' around an...
JEE MainPhysicsMedium
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QJEE MAIN 2024
Escape velocity of a body from earth is 11.2" " km/s. If the radius of a planet be one-third the radius of earth and mass...
JEE MainPhysicsMedium
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QJEE MAIN 2024
A beam of unpolarised light of intensity I_0 is passed through a polaroid A and then through another polaroid B which is oriented so that...
JEE MainPhysicsEasy
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QJEE MAIN 2024
If the total energy transferred to a surface in time $t$ is $6.48 \times 10^5 \mathrm{~J}$, then the magnitude of the total momentum delivered to...
JEE MainPhysicsEasy
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QJEE MAIN 2024
A block of mass $m$ is placed on a surface having vertical cross section given by $y=x^2 / 4$. If coefficient of friction is 0.5...
JEE MainPhysicsHard
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QJEE MAIN 2024
An alternating voltage $V(t)=220 \sin 100 \pi t$ volt is applied to a purely resistive load of $50 \Omega$. The time taken for the current...
JEE MainPhysicsEasy
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QJEE MAIN 2024
An electron revolving in $\mathrm{n}^{\text {th }}$ Bohr orbit has magnetic moment $\mu_n$. If $\mu_n \alpha n^x$, the value of $x$ is:
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