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# AIIMS (All India Institute of Medical Sciences) Physics: Questions 84 - 88 of 500

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## Question 84

Edit

Appeared in Year: 1995

### Question

MCQ▾

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.2.4 N
b.0.3 N
c.1.2 N
d.0.6 N

## Question 85

Scalar and Vector Products
Edit

### Question

MCQ▾

What happens, when we multiply a vector by (- 2)?

### Choices

Choice (4)Response
a.Direction remains unchanged and unit changes
b.Direction reverses and unit changes
c.Direction reverses and magnitude is doubled
d.Question does not provide sufficient data or is vague

## Question 86

Edit

Appeared in Year: 1999

### Question

MCQ▾

A particle executes simple harmonic motion with an angular velocity and maximum acceleration of. and respectively. Amplitude of the oscillation is – [AIIMS]

### Choices

Choice (4)Response
a.0.61m
b.0.53 m
c.0.36 m
d.0.28 m

## Question 87

Edit

Appeared in Year: 2006

### Question

MCQ▾

The magnetic moment has dimensions of – [AIIMS]

### Choices

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

## Question 88

Edit

Appeared in Year: 2004

### Question

MCQ▾

A sphere of mass M and radius R is falling in a viscous fluid. The terminal velocity attained by the falling object will be proportional to –

[AIIMS]

### Choices

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