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Q:

What is the simplified value of (cosec A + sin A)(cosec A – sin A)?

A) cos2A + cot2A B) 2 cos2A
C) 2 cot2A D) 2 cos A cot A
 
Answer & Explanation Answer: A) cos2A + cot2A

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

In which field did Amartya Sen win the Nobel Prize ?

A) Micro Economics B) Welfare Economics
C) Economic Growth Model D) Input-Output Model
 
Answer & Explanation Answer: B) Welfare Economics

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Filed Under: Honours and Awards
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Q:

In 1917, which movement was launched by Mahatma Gandhi from Champaran?

A) Satyagraha B) Non co-operation movement
C) Quit India movement D) Swadeshi Movement
 
Answer & Explanation Answer: A) Satyagraha

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Filed Under: Indian History
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Q:

The functioning of a very old model pendulum clock was completely

A) Mechanical B) Mechanical and electrical
C) Electrical D) Battery operated
 
Answer & Explanation Answer: A) Mechanical

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Filed Under: Physics
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Q:

In synapse the information is transmitted in the _______ form.

A) biological B) chemical
C) electrical D) No option is correct
 
Answer & Explanation Answer: B) chemical

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Filed Under: Biology
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Q:

The Mutation Theory was proposed by _____.

A) Charles Lyell B) William Smith
C) Hugo De Vries D) Harrison Schmitt
 
Answer & Explanation Answer: C) Hugo De Vries

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Filed Under: Biology
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Q:

Goods whose demand is proportional to price are called

A) inferior goods B) Veblen goods
C) normal goods D) exclusive goods
 
Answer & Explanation Answer: B) Veblen goods

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Filed Under: Indian Economy
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Q:

Which one of the followingis notan allotrope of carbon?

A) Coal B) Diamond
C) Graphite D) Graphene
 
Answer & Explanation Answer: A) Coal

Explanation:

Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.

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Filed Under: Chemistry
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