1
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
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

A spherical ball is dropped in a long column of a highly viscous liquid. The curve in the graph shown, which represents the speed of the ball (v) as a function of time (t) is

NEET 2022 Phase 1 Physics - Properties of Matter Question 10 English

A
A
B
B
C
C
D
D
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

If a soap bubble expands, the pressure inside the bubble

A
Decreases
B
Increases
C
Remains the same
D
Is equal to the atmospheric pressure
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : The stretching of a spring is determined by the shear modulus of the material of the spring.

Reason (R) : A coil spring of copper has more tensile strength than a steel spring of same dimensions.

In the light of the above statements, choose the most appropriate answer from the options given below:

A
Both (A) and (R) are true and (R) is the correct explanation of (A)
B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
C
(A) is true but (R) is false
D
(A) is false but (R) is true
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