AIIMS (All India Institute of Medical Sciences) Physics: Questions 80 - 84 of 500

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Question number: 80

» Laws of Motion » Centripetal Force

MCQ▾

Question

A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of Equation . The centripetal force is –

Choices

Choice (4) Response

a.

40 N

b.

10 N

c.

30 N

d.

20 N

Question number: 81

» Ray Optics » Total Internal Reflection

Appeared in Year: 2005

MCQ▾

Question

What should be the maximum acceptance angle at the air-core interface of an optical fiber if n1 and n2 are the refractive indices of the core and the cladding, respectively – [AIIMS]

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 82

» Kinematics » Projectile Motion

Appeared in Year: 2000

MCQ▾

Question

A body is projected at such an angle that the horizontal range is three times the greatest height. The angle of projection is [DPMT]

Choices

Choice (4) Response

a.

42°

b.

53°

c.

25°

d.

33°

Question number: 83

» Physics and Measurement » Dimensions of Physical Quantities

Appeared in Year: 2005

MCQ▾

Question

The dimensional formula of angular velocity is [JIPMER 1993; AFMC 1996]

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 84

» Magnetic Effects of Current and Magnetism » Bar Magnet

Appeared in Year: 1995

MCQ▾

Question

Force between two identical bar magnets whose centers are r meter apart is 4.8 N when their axes are in same line. If separation is increased to 2r, the force between them is reduced to: [AIIMS]

Choices

Choice (4) Response

a.

0.6 N

b.

0.3 N

c.

1.2 N

d.

2.4 N

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