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Q:

A boy is swinging a ball attached to a string in a horizontal circle.If the string snaps

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks D) none of these
 
Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having  been removed the body cannot execute the curved path. (B) is Correct.

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Filed Under: Physics

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Q:

Who invented the high level language C?

A) Dennis M. Ritchie B) Donald Kunth
C) Niklaus Writh D) Seymour Papert
 
Answer & Explanation Answer: A) Dennis M. Ritchie

Explanation:

C, an early systems programming language, was developed by Dennis Ritchie and Ken Thompson at Bell Labs between 1969 and 1973.

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Filed Under: Computer
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Q:

Which of the following year is considered as the first year of the Muslim calender ? 

A) AD 622 B) AD 671
C) AD 571 D) AD 651
 
Answer & Explanation Answer: A) AD 622

Explanation:

Muhammad had to leave Mecca his birth place where he started preaching and take refuse in Medina, where he was given a warm welcome. This event took place in AD 622 and is known as the year of the Hijira, or migration, which became the first year of the Muslim Calendar.

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Filed Under: World History

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Q:

What element is found in all organic compounds?

A) Hydrogen B) Calcium
C) Nitrogen D) Carbon
 
Answer & Explanation Answer: D) Carbon

Explanation:

Carbon is found in all organic compounds.

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Filed Under: Chemistry
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Q:

The time complexity of sequential search is

A) O(n) B) O(2n)
C) O(n^2) D) None
 
Answer & Explanation Answer: A) O(n)

Explanation:

The time complexity of sequential search is O(n)

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Filed Under: Database
Job Role: Database Administration

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Q:

Who Invented Traffic Signal ?

A) Lewis Edson Waterman B) Levi Strauss
C) Percy LeBaron Spencer D) Garrett Augustus Morgan
 
Answer & Explanation Answer: D) Garrett Augustus Morgan

Explanation:
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Filed Under: Inventions

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Q:

 Which of the following is an advantage of partitioning?

A) Complexity B) Inconsistent access speed
C) Extra space D) Security
 
Answer & Explanation Answer: D) Security

Explanation:
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Filed Under: Database

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Q:

Kathak, Nauntanki, Jhora and Kajri are the important dances of

A) Rajasthan B) Punjab
C) Uttar Pradesh D) Andhra Pradesh
 
Answer & Explanation Answer: C) Uttar Pradesh

Explanation:

Kathak, Nauntanki, Jhora and Kajri are the important dances of Uttar Pradesh.

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Filed Under: Indian Culture
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