MHT CET 2023 14th May Morning Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

The alternating e.m.f. induced in the secondary coil of a transformer is mainly due to

varying electric field

varying magnetic field

the iron core

heat produced in the coil

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

The efficiency of a heat engine is '$$\eta$$' and the coefficient of performance of a refrigerator is '$$\beta$$'. Then

$$\eta=\frac{1}{\beta}$$

$$\eta=\frac{1}{\beta+1}$$

$$\eta \beta=\frac{1}{2}$$

$$\eta=\frac{1}{\beta-1}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

A conducting sphere of radius $$0.1 \mathrm{~m}$$ has uniform charge density $$1.8 \mu \mathrm{C} / \mathrm{m}^2$$ on its surface. The electric field in free space at radial distance $$0.2 \mathrm{~m}$$ from a point on the surface is ( $$\varepsilon_0=$$ permittivity of free space)

$$\frac{6 \times 10^{-6}}{\varepsilon_0} \mathrm{Vm}^{-1}$$

$$\frac{6 \times 10^{-8}}{\varepsilon_0} \mathrm{Vm}^{-1}$$

$$\frac{2 \times 10^{-7}}{\varepsilon_0} \mathrm{Vm}^{-1}$$

$$\frac{1 \times 10^{-7}}{\varepsilon_0} \mathrm{Vm}^{-1}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

If $$\mathrm{I}_0$$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be the intensity when the slit width is doubled?

$$\frac{\mathrm{I}_0}{2}$$

$$\mathrm{I}_0$$

$$4 \mathrm{I}_0$$

$$2 \mathrm{I}_0$$

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