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AIIMS (All India Institute of Medical Sciences) Physics: Questions 40 - 43 of 500

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Question 40

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Appeared in Year: 2004

Question

MCQ▾

An object is immersed in a fluid. In order that the object becomes invisible, it should – [AIIMS]

Choices

Choice (4)Response
a.Have refractive index exactly matching with that of the surrounding fluid
b.Absorb all light falling on it
c.Behave as a perfect reflector
d.Have refractive index one

Question 41

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Appeared in Year: 2004

Question

MCQ▾

A 40 µF capacitor in a defibrillator is charged to 3000 V. The energy stored in the capacitor is sent through the patient during a pulse of duration 2 ms. The power delivered to the patient is – [AIIMS]

Choices

Choice (4)Response
a.45 kW
b.90 kW
c.360 kW
d.180 kW

Question 42

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Appeared in Year: 2005

Question

MCQ▾

A candle of diameter d is floating on a liquid in a cylindrical container of diameter D as shown in figure. If it is burning at the rate ofthen the top of the candle will – [AIIMS]

A candle floating on a liquid

A Candle Floating on a Liquid

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Choices

Choice (4)Response
a.Remain at the same height
b.Fall at the rate of 1 cm/hour
c.Fall at the rate of 2 cm/hour
d.Go up at the rate of 1 cm/hour

Question 43

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Appeared in Year: 2000

Question

MCQ▾

A magnet makes 40 oscillations per minute at a place having magnetic field of. At another place, it takes 2.5 sec to complete one vibration. The value of earth’s horizontal field at that place is: [AIIMS]

Choices

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