MHT CET 2023 10th May Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

What is the moment of inertia of the electron moving in second Bohr orbit of hydrogen atom? [ $$\mathrm{h}=$$ Planck's constant, $$\mathrm{m}=$$ mass of electron, $$\varepsilon_0=$$ permittivity of free space, $$\mathrm{e}=$$ charge on electron]

$$\frac{4 \varepsilon_0^2 h^4}{\pi^2 m e^4}$$

$$\frac{8 m \varepsilon_0^2 h^4}{\pi^2 e^4}$$

$$\frac{16 \varepsilon_0^2 h^4}{\pi^2 m e^4}$$

$$\frac{\varepsilon_0^2 h^4}{16 \pi^2 \mathrm{me}^4}$$

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

At critical temperature, the surface tension of liquid is

zero

infinity

unity

same as that at any other temperature

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

Two wires $$2 \mathrm{~mm}$$ apart supply current to a $$100 \mathrm{~V}, 1 \mathrm{~kW}$$ heater. The force per metre between the wires is ( $$\mu_0=4 \pi \times 10^{-27}$$ SI unit)

$$2 \times 10^{-2} \mathrm{~N}$$

$$4 \times 10^{-3} \mathrm{~N}$$

$$2 \times 10^2 \mathrm{~N}$$

$$10^{-2} \mathrm{~N}$$

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

A solenoid of 500 turns/m is carrying a current of 3 A. Its core is made of iron which has relative permeability 5001. The magnitude of magnetization is

$$4.5 \times 10^6 ~\mathrm{Am}^{-1}$$

$$6.0 \times 10^{-6} \mathrm{~Am}^{-1}$$

$$7.5 \times 10^6 \mathrm{~Am}^{-1}$$

$$9.0 \times 10^6 \mathrm{~Am}^{-1}$$

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