Questions

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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Q:

Two identical resistors, each of 10 ohm, are connected in parallel. This combination, in turn, is connected to a third resistor of 10 ohm. The equivalent resistance of the combination is ___.

A) 30 ohm B) 5 ohm
C) 15 ohm D) 10 ohm
 
Answer & Explanation Answer: C) 15 ohm

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Q:

On 29 September 2017, SEBI allowed Sovereign wealth fund and other long term Foreign Portfolio Investors (FPIs) to buy corporate debt up to ______ in infrastructure sector.

 

A) Rs 9500 crore B) Rs 5000 crore
C) Rs 15,000 crore D) Rs 20,000 crore
 
Answer & Explanation Answer: A) Rs 9500 crore

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Q:

Which of the following pairs (school of paintings and region where it flourished) is correctly matched?

 

A) Kalighat Paintings - Kolkata B) Phad (scroll paintings) - Punjab
C) Madhubani Paintings - Bihar D) Kalamkari - Andhra Pradesh
 
Answer & Explanation Answer: B) Phad (scroll paintings) - Punjab

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Q:

Which one among the following administers the International Development Association (IDA)?

A) UNDP B) UNIDO  
C) IFAD   D) IBRD
 
Answer & Explanation Answer: D) IBRD

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Q:

Which of the following is Study of fossils ?

A) Ethology B) Etiology
C) Anthropology D) Palaeontology
 
Answer & Explanation Answer: D) Palaeontology

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Q:

All of the following are true about ecosystems except

A) they represent the lowest level of biological organization that is known B) there is a transfer of energy through the system and it is lost
C) the ultimate source of energy is the sun for nearly all known ecosystems  D) they contain both living and nonliving components
 
Answer & Explanation Answer: A) they represent the lowest level of biological organization that is known

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Q:

In perfect competition _____.

A) Products can be similar or different B) Producer can control price by controlling production
C) Demand curve is perfectly elastic D) All firms make economic profit in the long run
 
Answer & Explanation Answer: C) Demand curve is perfectly elastic

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