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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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Filed Under: Physics

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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Filed Under: Physics

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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Filed Under: Physics

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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Filed Under: Physics

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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Filed Under: Physics

Q:

A man invests in a 16% stock at 128. The interest obtained by him is :

A) Rs. 8% B) Rs. 12%
C) Rs. 12.5% D) Rs. 16%
 
Answer & Explanation Answer: C) Rs. 12.5%

Explanation:

By investing Rs 128, income derived = Rs. 16

 

By investing Rs. 100, income derived =Rs. (16/128*100)  = Rs.12.5

 

Interest obtained  = 12.5%

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Filed Under: Stocks and Shares

Q:

Number of basic SI unit is

A) 4 B) 7
C) 6 D) 5
 
Answer & Explanation Answer: B) 7

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Filed Under: Physics

Q:

When is the Common Wealth Day observed by its member countries

A) January 25 B) May 24
C) October 24 D) November 14
 
Answer & Explanation Answer: B) May 24

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Filed Under: Important Days and Years