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QJEE MAIN 2022
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Dacron is an...
JEE MainChemistryEasy
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QJEE Main 2022
In two different experiments, an object of mass 5 kg moving with a speed of $25 \mathrm{~ms}^{-1}$ hits two different walls and comes to rest...
JEE MainPhysicsEasy
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QJEE-MAIN 2022
When you walk through a metal detector carrying a metal object in your pocket, it raises an alarm. This phenomenon works on
JEE MainPhysicsEasy
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QJEE MAIN 2022
A metal exposed to light of wavelength 800 nm and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy of photo-electron doubles when...
JEE MainPhysicsMedium
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QJEE MAIN 2022
The moles of methane required to produce 81 g of water after complete combustion is $\_\_\_\_$ $\times 10^{-2} \mathrm{~mol}$.
[nearest integer]
JEE MainChemistryEasy
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QJEE MAIN 2022
The percentage decrease in the weight of a rocket, when taken to a height of 32 km above the surface of earth will, be :...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Time taken by light to travel in two different materials $A$ and $B$ of refractive indices $\mu_A$ and $\mu_B$ of same thickness is $t_1$ and...
JEE MainPhysicsMedium
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QJEE MAIN 2022
For an object placed at a distance 2.4 m from a lens, a sharp focused image is observed on a screen placed at a distance...
JEE MainPhysicsHard
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QJEE MAIN 2022
If the length of a wire is made double and radius is halved of its respective values. Then, the Young’s modules of the material of...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Reaction of $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ with excess ammonia and in the presence of oxygen results into a diamagnetic product. Number of electrons present in $\mathrm{t}_{2 \mathrm{~g}}$-orbitals...
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