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Q:

Heat energy of an object is

A) the average energy of the molecules of the object B) the total energy of the molecules of the object
C) the average velocity of the molecules of the object D) the average potential energy of the molecules of the object
 
Answer & Explanation Answer: B) the total energy of the molecules of the object

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Q:

Which of the following physical quantities do not have same dimensions

A) Force and Pressure B) Work and Energy
C) Impulse and momentum D) Weight and Force
 
Answer & Explanation Answer: A) Force and Pressure

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Q:

The most suitable unit for expressing nuclear radius is

A) micro B) nanometre
C) fermi D) angstrom
 
Answer & Explanation Answer: C) fermi

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Q:

One astronomical unit is the average distance between

A) Earth and the Sun B) Earth and the Moon
C) Jupiter and the Sun D) Pluto and the Sun
 
Answer & Explanation Answer: A) Earth and the Sun

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Q:

Temperature can be expressed as derived quantity in terms of any of the following

A) length and mass B) mass and time
C) length,mass and time D) in terms of none
 
Answer & Explanation Answer: D) in terms of none

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Q:

Decibel is the unit of

A) speed of light B) intensity of sound
C) intensity of heat D) None of these
 
Answer & Explanation Answer: B) intensity of sound

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Q:

Curie is the unit of

A) temparature B) radio activity
C) heat D) energy
 
Answer & Explanation Answer: B) radio activity

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Q:

What is the SI unit of pressure

A) Pascal B) Dyne
C) Newton D) Jule
 
Answer & Explanation Answer: A) Pascal

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