Questions

Q:

The rate of change of velocity is called

A) Momentum B) Speed
C) Acceleration D) Force
 
Answer & Explanation Answer: C) Acceleration

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Q:

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?

 

A) 513 m B) 644 m
C) 342 m D) 171 m
 
Answer & Explanation Answer: A) 513 m

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Q:

Boiling point of water is ___.

A) 210 deg F B) 212 deg F
C) 214 deg F D) 208 deg F
 
Answer & Explanation Answer: B) 212 deg F

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Q:

An amendment of the constitution may be initiated ___

A) by introduction by the President of India. B) by introduction of a Bill in Rajya Sabha.
C) by the Governors of States. D) by the introduction of a bill in either House of Parliament.
 
Answer & Explanation Answer: D) by the introduction of a bill in either House of Parliament.

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Q:

‘Mentor India’ Compaign is an initiative to engage leaders who can guide and mentor students at ‘Atal Tinkering Labs’ across the country. Who launched‘Mentor India’ Campaign?

A) NASSCOM B) ASSOCHAM
C) NITI Aayog D) SEBI
 
Answer & Explanation Answer: C) NITI Aayog

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Q:

Which of the following coloured light has the lowest frequency?

A) Green B) Blue
C) Red D) Violet
 
Answer & Explanation Answer: C) Red

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Q:

A lens has a power +2.0 D. The type of lens and its focal length will be

A) Concave, -0.5 m B) Convex, 0.5 m
C) Concave, 0.5 m D) Convex, -0.5 m
 
Answer & Explanation Answer: B) Convex, 0.5 m

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Q:

If a body is whirled in a circle, then the work done on it ___.

A) is zero B) is positive
C) cannot be determined D) is negative
 
Answer & Explanation Answer: A) is zero

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