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QJEE MAIN 2022
The power of a lens (biconvex) is $1.25 \mathrm{~m}^{-1}$ in particular medium. Refractive index of the lens is 1.5 and radii of curvature are 20...
JEE MainPhysicsHard
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QJEE Main 2022
The diameter of an air bubble which was initially 2 mm , rises steadily through a solution of density $1750 \mathrm{~kg} \mathrm{~m}^{-} { }^3$ at...
JEE MainPhysicsEasy
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QJEE MAIN 2022
In the given figure, the face $A C$ of the equilateral prism is immersed in a liquid of refractive index ' $n$ '. For incident...
JEE MainPhysicsMedium
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Q JEE MAIN 2022
Sun light falls normally on a surface of area $36 \mathrm{~cm}^2$ and exerts an average force of $7.2 \times 10^{-9} \mathrm{~N}$ within a time period...
JEE MainPhysicsMedium
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QJEE Main 2022_
The frequency of echo will be _______ Hz if the train blowing a whistle of frequency 320 Hz is moving with a velocity of 36...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Read the following statements : (A) Volume of the nucleus is directly proportional to the mass number. (B) volume o the nucleus is...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Which statements are correct about degrees of freedom? A. A molecule with n degrees of freedom has $\mathrm{n}^2$ different ways of storing energy. ...
JEE MainPhysicsEasy
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QJEE MAIN 2022
The number of chiral alcohol(s) with molecular formula $\mathrm{C}_4 \mathrm{H}_{10} \mathrm{O}$ is $\_\_\_\_$
JEE MainChemistryEasy
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QJEE MAIN 2022
The radius of gyration of a cylindrical rod about an axis of rotation perpendicular to its length and passing through the center will be $\_\_\_\_$...
JEE MainPhysicsEasy
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QJEE Main 2022
Two electric dipoles of dipole moments $1.2 \times 10^{-30} \mathrm{~cm}$ and $2.4 \times 10^{-30} \mathrm{~cm}$ are placed in two difference uniform electric fields of strengths...
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