JEE Main 2023 Question Paper (10-Apr-2023) (Shift 1)

Question 1

The equivalent capacitance of the combination shown is

Accepted Answer

$2 \mathrm{C}$

Answer

$ \frac{5}{3} \mathrm{C} $

Answer

$ \frac{\mathrm{C}}{2} $

Answer

$4  \mathrm{C}$

Question 2

A physical quantity $ P $ is given as $ P = \frac{a^{2} b^{3}}{c \sqrt{d}} $. The percentage errors in the measurement of $ a,  b,  c $ and $ d $ are $ 1\%,  2\%, 3\% $ and $ 4\% $ respectively. The percentage error in the measurement of quantity $ P $ will be

Accepted Answer

$13\%$

Answer

$16\%$

Answer

$12\%$

Answer

$14\%$

Question 3

A carrier wave of amplitude $15 \mathrm{V}$ is modulated by a sinusoidal baseband signal of amplitude $3 \mathrm{V}$. The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is

Accepted Answer

$ \frac{3}{2} $

Answer

$2$

Answer

$1$

Answer

$5$

Question 4

The equivalent resistance of the circuit shown below between points $a$ and $b$ is :

Accepted Answer

$3.2 \quad \Omega$

Answer

$16 \quad \mathrm{\Omega}$

Answer

$24 \quad \mathrm{\Omega}$

Answer

$20 \quad \mathrm{\Omega}$

Question 5

The angular momentum for the electron in Bohr’s orbit is $ L $. If the electron is assumed to revolve in the second orbit of the hydrogen atom, then the change in angular momentum will be

Accepted Answer

$L$

Answer

Zero

Answer

$2L$

Answer

$\frac{L}{2}$