Questions

Q:

Find the potential energy gained by a body of mass 50 kg, if it is raised by 10m. (use g = 10 m/s2)

A) 50 B) 5000
C) 2500 D) 25
 
Answer & Explanation Answer: B) 5000

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Q:

An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force of gravity in this process?

A) 400 J B) 50 J
C) 40 J D) 100 J
 
Answer & Explanation Answer: A) 400 J

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Q:

The speed of the light is maximum in

A) Air B) Vacuum
C) Water D) Glass
 
Answer & Explanation Answer: B) Vacuum

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Q:

If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?

A) 80 m B) 40 m
C) 60 m D) 20 m
 
Answer & Explanation Answer: C) 60 m

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Q:

_____________ is a collection of data values of same types having a common name.

A) Object B) String
C) Array D) Numbers
 
Answer & Explanation Answer: C) Array

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Q:

Which country, on 25 October 2017 announced that it would be introduced a minimum wage for workers?

A) Bahrain B) Kuwait
C) Oman D) Qatar
 
Answer & Explanation Answer: A) Bahrain

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Q:

Who has been appointed as the Chief Secretary of the Delhi Government in December 2017?

A) Ajeet Vasant B) Anshu Prakash
C) Aditya Negi D) Akansha Ranjan
 
Answer & Explanation Answer: B) Anshu Prakash

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Q:

Around how much percent of earth's surface is covered with water?

A) 20-25% B) 40-50%
C) 70-80% D) 55-60%
 
Answer & Explanation Answer: C) 70-80%

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