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Q:

Which is the strongest force in the universe?

Answer

Nuclear Force

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Subject: Physics

Q:

Which is the weakest force in the universe?

Answer

Gravitational Force

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Subject: Physics

Q:

If lift is going up with acceleration, the apparent weight of a body is

A) may be more or less than true weight B) more than the true weight
C) less than the true weight D) equal to the true weight
 
Answer & Explanation Answer: B) more than the true weight

Explanation:
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Q:

What is unit of Astronomical distance ?

A) light year B) angstrom
C) weber D) lux
 
Answer & Explanation Answer: A) light year

Explanation:

angstrom is used to measure wave length,

weber is used to measure Magnetic flux,

lux is used to measure Intensity of illumination.

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Q:

Scalar Quantities are

A) physical quantities which have magnitude only and no direction B) physical quantities which have no magnitude only and only direction
C) physical quantities which have magnitude only and direction D) physical quantities which have no magnitude and no direction
 
Answer & Explanation Answer: A) physical quantities which have magnitude only and no direction

Explanation:
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Q:

The rotational effect of a force on a body about an axis of rotation is described in terms of

A) Centre of gravity B) Centripetal force
C) Centrifugal force D) Moment of force
 
Answer & Explanation Answer: D) Moment of force

Explanation:
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Q:

What is unit of Viscosity ?

A) coulomb B) newton second per square meter
C) watt per meter per degree celcius D) joule per kilogram per Kelvin
 
Answer & Explanation Answer: B) newton second per square meter

Explanation:

coulomb is unit of Electric Charge,

watt per meter per degree celcius is unit of Thermal Conductivity,

joule per kilogram per Kelvin is unit of Specific Heat capacity.

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Q:

Radian is used to measure

A) Temperature B) Intensity of Flame
C) Angle D) Solid Angle
 
Answer & Explanation Answer: C) Angle

Explanation:

Kelvin is used to measure Temperature,

Candela is used to measure Intensity of flame,

Steredian is used to measure Solid Angle.

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Filed Under: Physics