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Q:

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A) 8,000 J B) 4,00,000 J
C) 0 J D) 4,000 J
 
Answer & Explanation Answer: C) 0 J

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Filed Under: Physics
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Q:

If the distance travelled by an object is zero, then the displacement of the object

A) is zero B) is negative
C) is positive D) may or may not be zero
 
Answer & Explanation Answer: A) is zero

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Q:

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)

A) 35 m B) 25 m
C) 45 m D) 125 m
 
Answer & Explanation Answer: A) 35 m

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Q:

What is the principal focus of a spherical mirror?

A) It is a point from which the rays of light appear to be coming from on the principal axis of a convex mirror B) It is the point on the principal axis through which rays of light parallel to the principal axis pass after reflection or appear to be arising from this point on the principal axis
C) It is the centre of a hollow sphere of which the spherical mirror is a part D) It is the midpoint of a spherical mirror
 
Answer & Explanation Answer: B) It is the point on the principal axis through which rays of light parallel to the principal axis pass after reflection or appear to be arising from this point on the principal axis

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Q:

Pfizer Inc is a pharmaceutical company of which country?

A) Germany B) China
C) India D) USA
 
Answer & Explanation Answer: D) USA

Explanation:

The Pfizer Inc of the United States of America (USA) and its partner BioNTech of Germany completed the phase 3 trial of their COVID-19 vaccine candidate, BNT162b2 against SARS-CoV-2 with 95% effective success rate.

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Filed Under: General Awareness
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Q:

What is the minimum age to become the Prime Minister of India if he or she is a member of Rajya Sabha?

A) 18 B) 25
C) 30 D) 35
 
Answer & Explanation Answer: C) 30

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Filed Under: Indian Politics
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Q:

The per capita income in India was '20 in 1867-68, was ascertained for the first time by___________.

A) MG Ranade B) Sir W Hunter
C) RC Dutt D) Dadabhai Naoroji
 
Answer & Explanation Answer: D) Dadabhai Naoroji

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Q:

To become a member of the Rajya Sabha a person should be at least _____ years old.

A) 18 B) 30
C) 36 D) 24
 
Answer & Explanation Answer: B) 30

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Filed Under: Indian Politics
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