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

A spherical surface of radius of curvature '$$R$$' separates air from glass of refractive index 1.5. The centre of curvature is in the glass. A point object $$\mathrm{P}$$ placed in air forms a real image $$\mathrm{Q}$$ in the glass. The line $$P Q$$ cuts the surface at point '$$O$$' and $$\mathrm{PO}=\mathrm{OQ}=\mathrm{x}$$. Hence the distance '$$\mathrm{x}$$' is equal to

A
$$1.5 \mathrm{~R}$$
B
$$2 \mathrm{~R}$$
C
$$3\mathrm{~R}$$
D
$$5 \mathrm{~R}$$
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The rotational kinetic energy and translational kinetic energy of a rolling body are same, the body is

A
disc
B
sphere
C
cylinder
D
ring
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two concentric circular coils A and B have radii $$20 \mathrm{~cm}$$ and $$10 \mathrm{~cm}$$ respectively lie in the same plane. The current in coil A is $$0.5 \mathrm{~A}$$ in anticlockwise direction. The current in coil B so that net field at the common centre is zero, is

A
$$0.5 \mathrm{~A}$$ in anticlockwise direction
B
$$0.25 \mathrm{~A}$$ in anticlockwise direction.
C
$$0.25 \mathrm{~A}$$ in clockwise direction.
D
$$0.125 \mathrm{~A}$$ in clockwise direction.
4
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
$$\mathrm{1: 1}$$
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