1
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the e.m.f. of the battery. The ratio of the energy stored int he capacitor to the work done by the battery will be

A
2
B
$$\frac{1}{2}$$
C
1
D
$$\frac{1}{4}$$
2
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a photoelectric experiment, a graph of maximum kinetic energy $$(\mathrm{KE}_{\text {max }})$$ against the frequency of incident radiation (v) is plotted. If $$\mathrm{A}$$ and $$\mathrm{B}$$ are the intercepts on the $$\mathrm{X}$$ and $$\mathrm{Y}$$ axis respectively then the Planck's constant is given by

A
$$\mathrm{A}+\mathrm{B}$$
B
$$\frac{B}{A^{\prime}}$$
C
$$\mathrm{A} \times \mathrm{B}$$
D
$$\frac{\mathrm{A}}{\mathrm{B}}$$
3
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the work done in blowing a soap bubble of volume '$$\mathrm{V}$$' is '$$\mathrm{W}$$', then the work done in blowing a soap bubble of volume '$$2 \mathrm{~V}$$' will be

A
$$2 \mathrm{~W}$$
B
$$(4)^{1 / 3} \mathrm{~W}$$
C
$$\mathrm{W}$$
D
$$\sqrt{2} \mathrm{~W}$$
4
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A monochromatic ray of light travels through glass slab and water column. The number of waves in glass slab of thickness $$4 \mathrm{~cm}$$ is the same as in water column of height $$5 \mathrm{~cm}$$. If refractive index of glass is $$\frac{5}{3}$$ then refractive index of water is

A
1.33
B
1.30
C
1.25
D
1.10
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