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

The venturi-meter works on :

A
Bernoulli's principle
B
The principle of parallel axes
C
The principle of perpendicular axes
D
Huygen's principle
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $$W$$ attached at its free end. The longitudinal stress at any point of cross-sectional area $$A$$ of the wire is :

A
$$W / A$$
B
$$W / 2 A$$
C
Zero
D
$$2 W / A$$
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Two copper vessels A and B have the same base area but of different shapes. A takes twice the volume of water as that B requires to fill upto a particular common height. Then the correct statement among the following is :

A
Vessel B weighs twice that of A.
B
Pressure on the base area of vessels A and B is same.
C
Pressure on the base area of vessels A and B is not same.
D
Both vessels A and B weigh the same.
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The terminal velocity of a copper ball of radius 5 mm falling through a tank of oil at room temperature is 10 cm s$$-$$1. If the viscosity of oil at room temperature is 0.9 kg m$$-$$1 s$$-$$1, the viscous drag force is :

A
4.23 $$\times$$ 10$$-$$6 N
B
8.48 $$\times$$ 10$$-$$3 N
C
8.48 $$\times$$ 10$$-$$5 N
D
4.23 $$\times$$ 10$$-$$3 N
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