MHT CET 2023 12th May Evening Shift | MHT CET Year Wise Previous Years Questions

A thin wire of length '$$L$$' and uniform linear mass density '$$m$$' is bent into a circular coil. The moment of inertia of this coil about tangential axis and in plane of the coil is

$$\frac{3 \mathrm{~mL}^2}{5 \pi^2}$$

$$\frac{3 \mathrm{~mL}^3}{8 \pi^2}$$

$$\frac{3 \mathrm{~mL}^3}{4 \pi^2}$$

$$\frac{3 \mathrm{~mL}^2}{7 \pi^2}$$

MHT CET 2023 12th May Evening Shift

MCQ (Single Correct Answer)

-0

A black body radiates maximum energy at wavelength '$$\lambda$$' and its emissive power is '$$E$$'. Now due to a change in temperature of that body, it radiates maximum energy at wavelength $$\frac{\lambda}{3}$$. At that temperature emissive power is

$$16: 1$$

$$256: 1$$

$$81: 1$$

$$128: 1$$

MHT CET 2023 12th May Evening Shift

MCQ (Single Correct Answer)

-0

If the charge on the capacitor is increased by 3 coulombs, the energy stored in it increases by $$44 \%$$. The original charge on the capacitor is

10 C

15 C

20 C

25 C