Rotational Motion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 91 - 93 of 125

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Question number: 91

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

A disc is rolling (without slipping) on a horizontal surface. C is its centre and Q and P are two points equidistant from C. Let V P, V Q and V C be the magnitude of velocities of points P, Q and C respectively, then

Disc rolling on a horizontal surface point P and Q.

Disc Rolling on a Horizontal Surface Point P and Q.

In above figure we shows that disc is rolling on a horizontal surface, C is center of P and Q point.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 92

» Rotational Motion » Moment of Inertia

MCQ▾

Question

From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of loop Q about an axis passing through its center and perpendicular to its plane is 125 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)

Choices

Choice (4) Response

a.

2

b.

5

c.

6

d.

3

Question number: 93

» Rotational Motion » Angular Momentum

MCQ▾

Question

A uniform rod of length 4L is placed with one end in contact with the horizontal and is then inclined at an angle 60 0 to the horizontal and allowed to fall without slipping at contact point. When it becomes horizontal, its angular velocity will be

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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