1
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Two bodies of mass $$m$$ and $$9 m$$ are placed at a distance $$R$$. The gravitational potential on the line joining the bodies where the gravitational field equals zero, will be ($$G=$$ gravitational constant) :

A
$$-\frac{12 G m}{R}$$
B
$$-\frac{16 G m}{R}$$
C
$$-\frac{20 G m}{R}$$
D
$$-\frac{8 G m}{R}$$
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin) ?

NEET 2023 Physics - Geometrical Optics Question 6 English

A
$$-40 \mathrm{~cm}$$
B
$$-100 \mathrm{~cm}$$
C
$$-50 \mathrm{~cm}$$
D
$$40 \mathrm{~cm}$$
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is 0.15

$$\left(g=10 \mathrm{~m} \mathrm{~s}^{-2}\right)$$.

A
$$150 \mathrm{~m} \mathrm{~s}^{-2}$$
B
$$1.5 \mathrm{~m} \mathrm{~s}^{-2}$$
C
$$50 \mathrm{~m} \mathrm{~s}^{-2}$$
D
$$1.2 \mathrm{~m} \mathrm{~s}^{-2}$$
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

A satellite is orbiting just above the surface of the earth with period $$T$$. If $$d$$ is the density of the earth and $$G$$ is the universal constant of gravitation, the quantity $$\frac{3 \pi}{G d}$$ represents :

A
$$T^{2}$$
B
$$T^{3}$$
C
$$\sqrt{T}$$
D
$$T$$
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