1
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Select the correct statement from the following.

A
Gravitational force is stronger than electrostatic force
B
Gravitational as well as electrostatic force always attractive.
C
Gravitational as well as electrostatic force always act along the line joining the two objects.
D
Inverse square law $$\left(\mathrm{F} \propto \frac{1}{\mathrm{r}^2}\right)$$ is not obeyed by electrostatic force.
2
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

End correction at open end for air column in a pipe of length '$$l$$' is '$$e$$'. For its second overtone of an open pipe, the wavelength of the wave is

A
$$\frac{2(l+\mathrm{e})}{3}$$
B
$$\frac{2(l+2 \mathrm{e})}{3}$$
C
$$\frac{4(l+e)}{5}$$
D
$$\frac{4(l+2 \mathrm{e})}{5}$$
3
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a stationary lift, time period of a simple pendulum is '$$\mathrm{T}$$'. The lift starts accelerating downwards with acceleration $$\left(\frac{\mathrm{g}}{4}\right)$$, then the time period of the pendulum will be

A
$$\frac{\sqrt{3}}{2} \mathrm{~T}$$
B
$$\frac{2}{\sqrt{3}} \mathrm{~T}$$
C
$$\frac{3}{4} \mathrm{~T}$$
D
$$\frac{4}{3} \mathrm{~T}$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A body is projected vertically upwards from earth's surface of radius '$$R$$' with velocity equal to $$\frac{1^{\text {rd }}}{3}$$ of escape velocity. The maximum height reached by the body is

A
$$\frac{R}{8}$$
B
$$\frac{\mathrm{R}}{6}$$
C
$$\frac{\mathrm{R}}{4}$$
D
$$\frac{\mathrm{R}}{9}$$
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