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# AIIMS (All India Institute of Medical Sciences) Physics: Questions 492 - 497 of 500

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## Question 492

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### Question

MCQ▾

The magnetic flux linked with a coil varies with time, given as, . The induced emf at 2 sec is –

### Choices

Choice (4)Response
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b.
c.
d.

## Question 493

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### Question

MCQ▾

A rotating platform of moment of inertia completes one rotation in 20 seconds. A person of mass is standing at the centre of platform. If the person moves at a distance of from the centre along the radius then find the angular velocity of the platform.

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Choice (4)Response
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b.
c.
d.

## Question 494

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### Question

MCQ▾

A spherical solid ball of mass 1kg and radius 3 cm is rotating about its own axis with an angular velocity of 50 radians per second. Find its kinetic energy of rotation.

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Choice (4)Response
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c.
d.

## Question 495

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### Question

MCQ▾

Find the initial momentum of electron if the momentum of electron is changed by and the De Broglie wavelength associated with it changes by 0.40%

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Choice (4)Response
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d.

## Question 496

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Appeared in Year: 1996

### Question

MCQ▾

Two soap bubbles each of radius 20 cm are touching each other. The radius of curvature of the common surface will be – [RPMT]

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

## Question 497

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Appeared in Year: 1989

### Question

MCQ▾

Two charges of and are placed apart, the ratio of force exerted by both charges on each other will be – [RPET]

### Choices

Choice (4)Response
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b.
c.
d.