NEET Physics: Questions 2066 - 2068 of 2099

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Question number: 2066

» Properties of Solids & Liquids » Surface Energy and Surface Tension

Appeared in Year: 2016

MCQ▾

Question

A rectangular film of liquid is extended from (4cm×2cm) to (5cm×4cm) . If the work done is 3×104J , the value of the surface tension of the liquid is –

Choices

Choice (4) Response
a.

8.0Nm

b.

0.125Nm

c.

0.250Nm

d.

0.2Nm

Question number: 2067

» Kinematics » Uniformly Accelerated Motion

Appeared in Year: 2016

MCQ▾

Question

In the given figure, a=15ms2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R=2.5m at a given instant of time. The speed of the particle is –

Circle c Circle c: Circle through B with center AAngle? Angle? : Angle between A, C, A’Segment f Segment f: Segment [A, D] Segment g Segment g: Segment [A, C] Vector u Vector u: Vector [C, A’] Vector u Vector u: Vector [C, A’] Point A A = (0.08, 3.5) Point A A = (0.08, 3.5) Point C C = (0.74, 4.4) Point C C = (0.74, 4.4) 30? text1 = “30? “R text1_1 = “R”a text1_2 = “a”O text1_3 = “O”

a Circular Path of Radius 2.5 M

In figure a particle moving in the clockwise direction in a circle of radius R = 2.5 m at a given instant of time.

Choices

Choice (4) Response
a.

4.5ms

b.

5.7ms

c.

5.0ms

d.

6.2ms

Question number: 2068

» Center of Mass » Centre of Mass of a Two-Particle System

Appeared in Year: 2016

MCQ▾

Question

A light rod of length l has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the road and passing through the centre of mass is:

Choices

Choice (4) Response
a.

(m1+m2)l2

b.

m1m2m1+m2l2

c.

m1m2l2

d.

m1m2m1+m2l2

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