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

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is :

A
$${{10} \over 3}$$ m
B
$${{20} \over 3}$$ m
C
10 m
D
5 m
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

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
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms$$-$$1. The frictional force opposing the motion is 3000 N. The minimum power delivered by the motor to the lift in watts is : (g = 10 ms$$-$$2)

A
23000
B
20000
C
34500
D
23500
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The angle between the electric lines of force and the equipotential surface is

A
0$$^\circ$$
B
45$$^\circ$$
C
90$$^\circ$$
D
180$$^\circ$$
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