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QJEE MAIN 2020
If the system of linear equations 2x + 2ay + az = 0 2x + 3by + bz = 0 2x +...
JEE MainMathematicsMedium
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QJEE MAIN 2021
An object viewed from a near point distance of 25 cm, using a microscopic lens with magnification '6', gives an unresolved image. A resolved image...
JEE MainPhysicsMedium
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QJEE MAIN 2021
The amplitude of upper and lower side bands of A.M. wave where a carrier signal with frequency 11.21 MHz , peak voltage 15 V is...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Two inclined planes are placed as shown in figure. A block is projected from the Point A of inclined plane AB along its surface with...
JEE MainPhysicsHard
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QJEE MAIN 2022
A solid cylinder length is suspended symmetrically through two massless strings, as shown in the figure. The distance from the initial rest position, the cylinder...
JEE MainPhysicsMedium
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QJEE MAIN 2022
A spherical soap bubble of radius 3 cm is formed inside another spherical soap bubble of radius 6 cm. If the internal pressure of the...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A wire of length 30 cm, stretched between rigid supports, has it’s $\mathrm{n}^{\text {th }}$ and $(n+1)^{t h}$ harmonics at 400 Hz and 450 Hz,...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A parallel plate capacitor with width 4 cm, length 8 cm and separation between the plates of 4 mm is connected to a battery of...
JEE MainPhysicsMedium
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QJEE MAIN 2022
As show in the figure, in steady state, the charge stored in the capacitor is ………… $\times 10^{-6} \mathrm{C}$.
JEE MainPhysicsMedium
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QJEE MAIN 2022
A conducting circular loop is placed in X – Y plane in presence of magnetic field $\overrightarrow{\mathrm{B}}=\left(3 t^3 \hat{\mathrm{j}}+3 t^2 \hat{\mathrm{k}}\right)$ in SI unit. If...
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