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AIIMS (All India Institute of Medical Sciences) Physics: Questions 78 - 83 of 500

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Question 78

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Appeared in Year: 2001

Question

MCQ▾

A body of mass 5 kg has momentum of. When a force of 0.2 N is applied on it for 10 seconds, what is the change in its kinetic energy: - [AIIMS]

Choices

Choice (4)Response
a.3.3J
b.4.4J
c.2.2J
d.1.1 J

Question 79

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Appeared in Year: 1996

Question

MCQ▾

To induce an emf in a coil, the magnetic flux linking [AIIMS]

Choices

Choice (4)Response
a.Can either increase or decrease
b.Must increase
c.Must decrease
d.Must remain constant

Question 80

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Question

MCQ▾

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

Choices

Choice (4)Response
a.20 N
b.10 N
c.30 N
d.40 N

Question 81

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Appeared in Year: 2005

Question

MCQ▾

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.
b.
c.
d.

Question 82

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Appeared in Year: 2000

Question

MCQ▾

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.25°
b.42°
c.33°
d.53°

Question 83

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Appeared in Year: 2005

Question

MCQ▾

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

Choices

Choice (4)Response
a.
b.
c.
d.