1
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic potential energy stored in certain inductor is $64 \times 10^{-3} \mathrm{~J}$, when the current in the inductor is 80 mA . This inductor is of inductance

A
0.20 H
B
2.0 H
C
20 H
D
200 H
2
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two identical drops of water are falling through air with steady velocity ' V '. If the two drops come together to form a single drop. The new velocity of the single drop is

A
$(2)^{1 / 3} \mathrm{~V}$
B
(2) ${ }^{3 / 2} \mathrm{~V}$
C
$(2)^{2 / 3} \mathrm{~V}$
D
$(2)^{1 / 4} \mathrm{~V}$
3
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The equations of two waves are given as

$$\begin{aligned} & y_1=a \sin \left(\omega t+\phi_1\right) \\ & y_2=a \sin \left(\omega t+\phi_2\right) \end{aligned}$$

If amplitude and time period of resultant wave is same as the individual waves, then $\left(\phi_1-\phi_2\right)$ is

A
$\cos ^{-1}\left(\frac{-1}{2}\right)$
B
$\cos ^{-1}\left(\frac{-1}{4}\right)$
C
$\cos ^{-1}\left(-\frac{1}{6}\right)$
D
$\cos ^{-1}\left(-\frac{1}{8}\right)$
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