1
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
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A particle of mass m moving with velocity v collides with a stationary particle of mass 2m. After collision, they stick together and continue to move together with velocity

A
$$v$$
B
$$\frac{v}{3}$$
C
$$\frac{v}{4}$$
D
$$\frac{v}{2}$$
2
JEE Main 2023 (Online) 10th April Morning Shift
Numerical
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-1
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A transverse harmonic wave on a string is given by

$$y(x,t) = 5\sin (6t + 0.003x)$$

where x and y are in cm and t in sec. The wave velocity is _______________ ms$$^{-1}$$.

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3
JEE Main 2023 (Online) 10th April Morning Shift
Numerical
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-1
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10 resistors each of resistance 10 $$\Omega$$ can be connected in such as to get maximum and minimum equivalent resistance. The ratio of maximum and minimum equivalent resistance will be ___________.

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4
JEE Main 2023 (Online) 10th April Morning Shift
Numerical
+4
-1
Change Language

A 1 m long metal rod XY completes the circuit as shown in figure. The plane of the circuit is perpendicular to the magnetic field of flux density 0.15 T. If the resistance of the circuit is 5$$\Omega$$, the force needed to move the rod in direction, as indicated, with a constant speed of 4 m/s will be ____________ 10$$^{-3}$$ N.

JEE Main 2023 (Online) 10th April Morning Shift Physics - Electromagnetic Induction Question 18 English

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