1
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
A 2$$\mu$$F capacitor C1 is first charged to a potential difference of 10V using a battery. Then the battery is removed and the capacitor is connected to an uncharged capacitor C2 of 8 $$\mu$$F. The charge in C2 on equilibrium condition is ____________ $$\mu$$C. (Round off to the Nearest Integer)

JEE Main 2021 (Online) 17th March Evening Shift Physics - Capacitor Question 69 English
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2
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
A boy of mass 4 kg is standing on a piece of wood having mass 5 kg. If the coefficient of friction between the wood and the floor is 0.5, the maximum force that the boy can exert on the rope so that the piece of wood does not move from its place is __________ N. (Round off to the Nearest Integer) [Take g = 10 ms-2 ]

JEE Main 2021 (Online) 17th March Evening Shift Physics - Laws of Motion Question 64 English
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3
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
A body of mass 1 kg rests on a horizontal floor with which it has a coefficient of static friction $${1 \over {\sqrt 3 }}$$. It is desired to make the body move by applying the minimum possible force F N. The value of F will be ____________. (Round off to the Nearest Integer) [Take g = 10 ms$$-$$2 ]
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4
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Change Language
A particle of mass m moves in a circular orbit in a
central potential field U(r) = U0r4. If Bohr's quantization conditions
are applied, radii of possible
orbitals rn vary with $${n^{{1 \over \alpha }}}$$, where $$\alpha$$ is ____________.
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