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QJEE MAIN 2025
Energy released when two deuterons $\left({ }_{1} H^{2}\right)$ fuse to form a helium nucleus $\left({ }_{2} H e^{4}\right)$ is : (Given : Binding energy per...
JEE MainPhysicsEasy
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QJEE MAIN 2025
A sinusoidal wave of wavelength 7.5 cm travels a distance of 1.2 cm along the $X$-direction in 0.3 sec . The crest P is at...
JEE MainPhysicsEasy
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QJEE MAIN 2025
Match List - I with List - II.
JEE MainPhysicsEasy
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QJEE MAIN 2025
A body of mass 1 kg is suspended with the help of two strings making angles as shown in figure. Magnitudes of tensions $T_{1}$ and...
JEE MainPhysicsEasy
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QJEE MAIN 2025
Two identical objects are placed in front of convex mirror and concave mirror having same radii of curvature of 12 cm , at same distance...
JEE MainPhysicsMedium
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QJEE MAIN 2025
Assuming the validity of Bohr's atomic model for hydrogen like ions the radius of $\mathrm{Li}^{++}$ion in its ground state is given by $\frac{1}{X} a_{0}$, where...
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QJEE MAIN 2025
Given a charge q , current I and permeability of vacuum $\mu_{o}$. Which of the following quantity has the dimension of momentum?
JEE MainPhysicsMedium
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QJEE MAIN 2025
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Net dipole...
JEE MainPhysicsEasy
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QJEE MAIN 2025
Two large plane parallel conducting plates are kept 10 cm apart as shown in figure. The potential difference between them is V . The potential...
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