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Q:

Sensitivity of potentiometer can be increased by

A) increasing the e.m.f. of the cell B) increasing the length of the potentiometer
C) decreasing the length of the potentiometer wire D) none of these
 
Answer & Explanation Answer: B) increasing the length of the potentiometer

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Filed Under: Physics
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Q:

Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.

 

A) 0.01 B) 2500
C) 0.02 D) 1250
 
Answer & Explanation Answer: A) 0.01

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Filed Under: Physics
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2 611
Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with someLogic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives

A) 2 –8 B) 4 – 12
C) 8 – 24 D) 10 – 30
 
Answer & Explanation Answer: A) 2 –8

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Filed Under: Verbal Reasoning - Logical Deduction

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Q:

What of the following refers to hypotheses which are confirmed by varied tests?

A) Assumption B) Theory
C) Answer D) Opinion
 
Answer & Explanation Answer: B) Theory

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Filed Under: General Science
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Q:

After how much time the laws made by Parliament on the state subjects during a National Emergency become inoperative and cease to operate?

 

A) Three months B) Six months
C) Nine months D) Twelve months
 
Answer & Explanation Answer: B) Six months

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Filed Under: Indian Politics
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Q:

In accordance to the Construction, Protection of Life and Personal Liberty is granted under which Article?

A) Article 20 B) Article 21
C) Article 22 D) Article 23
 
Answer & Explanation Answer: B) Article 21

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Filed Under: Indian Politics
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Q:

On January 16, 2018 the Supreme Court ruled the attacks and interference on adults opting for inter-caste marriage as ‘absolutely illegal’ in the petition filed by which NGO in 2010?

 

A) PRATHAM B) Shakti Vahini
C) Goonj D) Sammaan
 
Answer & Explanation Answer: B) Shakti Vahini

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Filed Under: Indian Politics
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Q:

What is organic matter in soil is also called

A) residue B) humus
C) occlusion D) compact
 
Answer & Explanation Answer: B) humus

Explanation:

In soil, organic matter consists of plant and animal material that is in the process of decomposing. When it has fully decomposed it is called humus. Soil organic matter serves as a reservoir of nutrients for crops, provides soil aggregation, increases nutrient exchange, retains moisture, reduces compaction,... 

This humus is important for soil structure because it holds individual mineral particles together in clusters.

 

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Filed Under: General Science
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