NEET 2023 Manipur | NEET Year Wise Previous Years Questions

Two particles A and B initially at rest, move towards each other under mutual force of attraction. At an instance when the speed of A is v and speed of B is 3v, the speed of centre of mass is :

zero

NEET 2023 Manipur

MCQ (Single Correct Answer)

-1

A charge $$\mathrm{Q} ~\mu \mathrm{C}$$ is placed at the centre of a cube. The flux coming out from any one of its faces will be (in SI unit) :

$$\frac{Q}{\epsilon_0} \times 10^{-6}$$

$$\frac{2 \mathrm{Q}}{3 \epsilon_0} \times 10^{-3}$$

$$\frac{\mathrm{Q}}{6 \epsilon_0} \times 10^{-3}$$

$$\frac{\mathrm{Q}}{6 \epsilon_0} \times 10^{-6}$$

NEET 2023 Manipur

MCQ (Single Correct Answer)

-1

The viscous drag acting on a metal sphere of diameter $$1 \mathrm{~mm}$$, falling through a fluid of viscosity $$0.8 \mathrm{~Pa}$$ s with a velocity of $$2 \mathrm{~m} \mathrm{~s}^{-1}$$ is equal to :

$$15 \times 10^{-3} \mathrm{~N}$$

$$30 \times 10^{-3} \mathrm{~N}$$

$$1.5 \times 10^{-3} \mathrm{~N}$$

$$20 \times 10^{-3} \mathrm{~N}$$

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