Questions

Q:

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)

 

 

A) 0.112 mA B) 112 mA
C) 11.2 mA D) 1.12 mA
 
Answer & Explanation Answer: D) 1.12 mA

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Q:

What is the type of Energy possessed by a stretched rubber band?

A) Potential energy B) Kinetic energy
C) Chemical energy D) Thermal energy
 
Answer & Explanation Answer: D) Thermal energy

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Q:

A high jumper runs for a while before taking a high jump so that the inertia of __ helps him take the long jump.

A) rest B) shape
C) motion D) direction
 
Answer & Explanation Answer: C) motion

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Q:

_________ is any attribute of the organism (morphological, physiological, behavioural) that enables the organism to survive and reproduce in its habitat.

A) Adaptation B) Migration
C) Conformation D) Regulation
 
Answer & Explanation Answer: A) Adaptation

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Q:

Which of the following is indicated by the colour of a star ?

A) weight B) distance
C) temperature D) size
 
Answer & Explanation Answer: C) temperature

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Q:

Which of the following is a tsunami warning sign?

A) Stormy weather B) Hailstorm
C) Water falling back quickly from the beach D) Pets acting strangely
 
Answer & Explanation Answer: C) Water falling back quickly from the beach

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Q:

On which date is India likely to experience the shortest day?

A) December 22 B) March 21
C) June 22 D) September 23
 
Answer & Explanation Answer: A) December 22

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Q:

Bridgmanite is

A) A bridge on the river Thames B) Name of a game
C) Earth's most abundant mineral D) Name of a music
 
Answer & Explanation Answer: C) Earth's most abundant mineral

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