NTA JEE Main 11th April 2023 Shift 2

A capacitor of capacitance $$C$$ is charged to a potential $$V$$. The flux of the electric field through a closed surface enclosing the positive plate of the capacitor is:

The current flowing through $$R_2$$ is:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: A bar magnet dropped through a metallic cylindrical pipe takes more time to come down compared to a non-magnetic bar with same geometry and mass.
Reason R: For the magnetic bar, Eddy currents are produced in the metallic pipe which oppose the motion of the magnetic bar.
In the light of the above statements, choose the correct answer from the options given below

An electron is allowed to move with constant velocity along the axis of current carrying straight solenoid.
(A) The electron will experience magnetic force along the axis of the solenoid.
(B) The electron will not experience magnetic force.
(C) The electron will continue to move along the axis of the solenoid.
(D) The electron will be accelerated along the axis of the solenoid.
(E) The electron will follow parabolic path-inside the solenoid.
Choose the correct answer from the option given below:

A plane electromagnetic wave of frequency 20 MHz propagates in free space along $$x$$-direction. At a particular space and time $$\vec{E} = 6.6\hat{j}$$ V m$$^{-1}$$. What is $$\vec{B}$$ at this point?

When one light ray is reflected from a plane mirror with 30$$^\circ$$ angle of reflection, the angle of deviation of the ray after reflection is:

The ratio of the de-Broglie wavelengths of proton and electron having same kinetic energy:
(Assume $$m_p = m_e \times 1849$$)

The energy of He$$^+$$ ion in its first state is, (The ground state energy for the Hydrogen atom $$-13.6$$ eV):

The logic operations performed by the given digital circuit is equivalent to:

In satellite communication, the uplink frequency band used is: