1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A charged spherical conductor of radius '$$R$$' is connected momentarily to another uncharged spherical conductor of radius '$$r$$' by means of a thin conducting wire, then the ratio of the surface charge density of the first to the second conductor is

A
$$\mathrm{R}: \mathrm{r}^2$$
B
$$\mathrm{R}: \mathrm{r}$$
C
$$\mathrm{r: R}$$
D
$$\mathrm{1: 1}$$
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The magnet is moved towards the coil with speed '$$\mathrm{V}$$'. The induced e.m.f. in the coil is '$$\mathrm{e}$$'. The magnet and the coil move away from one another each moving with speed '$$\mathrm{V}$$'. The induced e.m.f. in the coil is

MHT CET 2023 13th May Morning Shift Physics - Electromagnetic Induction Question 63 English
A
$$\mathrm{e}$$
B
$$2 \mathrm{e}$$
C
$$\frac{\mathrm{e}}{2}$$
D
$$4 \mathrm{e}$$
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A uniform wire $$20 \mathrm{~m}$$ long and weighing $$50 \mathrm{~N}$$ hangs vertically. The speed of the wave at mid point of the wire is (acceleration due to gravity $$=\mathrm{g}=10 \mathrm{~ms}^{-2}$$ )

A
$$4 \mathrm{~ms}^{-1}$$
B
$$10 \sqrt{2} \mathrm{~ms}^{-1}$$
C
$$10 \mathrm{~ms}^{-1}$$
D
Zero $$\mathrm{ms}^{-1}$$
4
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A large number of bullets are fired in all directions with same speed '$$U$$'. The maximum area on the ground on which the bullets will spread is

A
$$\frac{\pi u^2}{g}$$
B
$$\frac{\pi \mathrm{u}^4}{\mathrm{~g}^2}$$
C
$$\frac{\pi^2 u^4}{g^2}$$
D
$$\frac{\pi^2 \mathrm{u}^2}{\mathrm{~g}^2}$$
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