Questions

Q:

Which of the following physical quantity measures the rate of work done?

A) Power B) Momentum
C) Force D) Energy
 
Answer & Explanation Answer: A) Power

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Q:

A body of mass 3 kg accelerates from 10 m/s to 20 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

 

A) 6 B) 18
C) 12 D) 36
 
Answer & Explanation Answer: A) 6

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Q:

The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as

A) -30 cm B) -15 cm
C) +30 cm D) +15 cm
 
Answer & Explanation Answer: B) -15 cm

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Q:

The number of parliamentary seats (Lok Sabha) of Haryana is

A) 10 B) 26
C) 28 D) 48
 
Answer & Explanation Answer: A) 10

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Q:

Who has been appointed as the Secretary General of the United Nations in January, 2017?

A) Ban Ki-Moon B) Kofi Annan
C) Boutros-Boutros Ghali D) Antonio Guterres
 
Answer & Explanation Answer: D) Antonio Guterres

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Q:

Family is important to the socialization process because:

A) parents greatly affect a child's self-concept. B) families give children social identity in terms of class, ethnicity, and religion.
C) family members are often what Mead called "significant others." D) All of the above are correct.
 
Answer & Explanation Answer: B) families give children social identity in terms of class, ethnicity, and religion.

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Q:

Which of the following was the winner of the Grammy Awards 2016 "Country Song of the Year"?

A) Chances Are B) Girl Crush
C) Hold My Hand D) Traveller
 
Answer & Explanation Answer: B) Girl Crush

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Q:

Which one of the followingis notan allotrope of carbon?

A) Coal B) Diamond
C) Graphite D) Graphene
 
Answer & Explanation Answer: A) Coal

Explanation:

Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.

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