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QJEE MAIN 2022
2.5 g of protein containing only glycine $\left(\mathrm{C}_2 \mathrm{H}_5 \mathrm{NO}_2\right)$ s dissolved in water to make 500 mL of solution. The osmotic pressure of this...
JEE MainChemistryMedium
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QJEE MAIN 2022
If $y(x)=\left(x^{x^x}\right), x>0$ then $\frac{d^2 x}{d y^2}+20$ at $x=1$ is equal to :
JEE MainMathematicsHard
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QJEE MAIN 2022
Two charged particles, having same kinetic energy, are allowed to pass through a uniform magnetic field perpendicular to the direction of motion. If the ratio...
JEE MainPhysicsEasy
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QJEE MAIN 2022
The total charge on the system of capacitance $\mathrm{C}_1=1 \mu \mathrm{~F}, \mathrm{C}_2=2 \mu \mathrm{~F}, \mathrm{C}_3=4 \mu \mathrm{~F}$ and $\mathrm{C}_4=3 \mu \mathrm{~F}$ connected in parallel is...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A drop of liquid of density $\rho$ is floating half immersed in a liquid of density $\sigma$ and surface tension $7.5 \times 10^{-4}$ $\mathrm{Ncm}^{-1}$. The...
JEE MainPhysicsHard
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QJEE MAIN 2022
Two bar magnets oscillate in a horizontal plane in earth’s magnetic field with time periods of 3 s and 4 s respectively. If their moments...
JEE MainPhysicsMedium
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QJEE MAIN 2022
For combustion of one mole of magnesium in an open container at 300 K and 1 bar pressure, $\Delta \mathrm{CH}^{\ominus}=-601.70 \mathrm{~kJ} \mathrm{~mol}^{-1}$ , the magnitude...
JEE MainChemistryMedium
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QJEE MAIN 2022
Let $[t]$ denote the greatest integer $\leq t$ and $\{t\}$ denote the fractional part of $t$. Then integral value of $\alpha$ for which the left...
JEE MainMathematicsMedium
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QJEE MAIN 2022
A condenser of $2 \mu \mathrm{~F}$ capacitance is charged steadily from 0 to 5C. Which of the following graph represents correctly the variation of potential...
JEE MainPhysicsEasy
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QJEE MAIN 2022
A ball is projected with kinetic energy E, at an angle of 60º to the horizontal. The kinetic energy of this ball at the highest...
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