General Knowledge Questions

Q:

Which of the following has low resistivity?

A) Nichrome B) Glass
C) Ebonite D) Diamond
 
Answer & Explanation Answer: A) Nichrome

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Q:

A body of mass 6 kg accelerates from 6 m/s to 18 m/s in 3 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

 

A) 48 B) 60
C) 24 D) 96
 
Answer & Explanation Answer: C) 24

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Q:

The speed of light in vacuum is estimated as ___ meters/second.

A) 3.00 x 108 B) 3.10 x 108
C) 3.12 x 108 D) 3.15 x 108
 
Answer & Explanation Answer: A) 3.00 x 108

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Q:

____ is used in periscope.

A) Plane mirror B) Prism
C) Concave lens D) Convex lens
 
Answer & Explanation Answer: A) Plane mirror

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Q:

A conductor having some appreciable resistance is called a

A) Resistor B) Insulator
C) Conductor D) Semi-conductor
 
Answer & Explanation Answer: A) Resistor

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Q:

A unit of power is called a

A) Joule B) Pascal
C) Newton D) Watt
 
Answer & Explanation Answer: B) Pascal

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Q:

What is the upward force exerted by water called?

A) Density B) Buoyant force
C) Gravitation D) Friction
 
Answer & Explanation Answer: B) Buoyant force

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Q:

What will be the acceleration produced when a force of 21 N is applied on an object of mass 3 kg?

 

A) 0.7 m/s2 B) 7 m/s2
C) 0.007 m/s2 D) 70 m/s2
 
Answer & Explanation Answer: B) 7 m/s2

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