1
Q:

# A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the the bucket. The reading of the spring balance

 A) will increase B) will decrease C) does not change D) varies with the increase of depth of the immersion of the iron piece

Explanation:

When the piece of iron is lowered into the water, the water level in the bucket increases. And so the pressure at the bottom of bucket also increases. Thus the total thrust at bottom also increases. Therefore the spring balance reading increases. Thus (a) is correct.

Subject: Physics
Q:

Which instrument is used to measure blood pressure?

 A) Sphygmomanometer B) Lactometer C) Thermometer D) Glucometer

Explanation:

Filed Under: Physics
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0 14
Q:

The term ______ is prefixed to scientific terms to describe something that is constant.

 A) Photo B) Iso C) Mega D) Quasi

Explanation:

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0 76
Q:

1 horsepower = approximately _____ watts.

 A) 746 B) 764 C) 647 D) 674

Explanation:

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Exam Prep: Bank Exams

3 140
Q:

Which law of physics states that the force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled?

 A) Coulomb’s Law B) Stefan's Law C) Pascal's Law D) Hooke's Law

Explanation:

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0 256
Q:

What is the unit of measure of a magnetic field?

 A) Cobalt B) Ohm C) Tesla D) Ampere

Explanation:

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3 212
Q:

_______ expansion makes the Eiffel Tower taller during summers.

 A) Thermal B) Chemical C) Gravitational D) Gradient

Explanation:

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3 1354
Q:

Georg Simon Ohm in whose honour we have the famous Ohm’s Law, hailed from which country?

 A) Russia B) Spain C) Poland D) Germany

Explanation:

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Exam Prep: Bank Exams

1 1418
Q:

Purpose of an optical filter is to

 A) reflect lights of different colours B) dispense light into component colours C) refract light of different colours D) transmit or absorb light of different colours

Answer & Explanation Answer: D) transmit or absorb light of different colours

Explanation: