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Q:

Which Indian nuclear scientist is currently the chairman of the Atomic Energy Commission of India?

A) R. Murugesan B) A.S. Kiran Kumar
C) Madhavan Nair   D) Sekhar Basu
 
Answer & Explanation Answer: D) Sekhar Basu

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Q:

What is the SI unit of Force?

A) Pascal B) Boyle
C) Newton D) Watt
 
Answer & Explanation Answer: C) Newton

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Filed Under: Physics
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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Q:

Which type of foreign investment is considered as unsafe?

A) Foreign Direct Investment (FDI) B) Portfolio investment
C) NRI deposits D) External commercial borrowing
 
Answer & Explanation Answer: B) Portfolio investment

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Q:

Every set in the dotted decimal format of IP address is called

A) Subnet B) Octet
C) Subset D) IP set
 
Answer & Explanation Answer: B) Octet

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Q:

_______ determines colour, texture, chemical properties, mineral content and permeability of soil.

A) Flora & Fauna B) Time
C) Climate D) Parent rock
 
Answer & Explanation Answer: D) Parent rock

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Q:

Precipitation in the form of a mixture of rain and snow is called

A) Drizzle B) Hail
C) Sleet D) Snow
 
Answer & Explanation Answer: C) Sleet

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Q:

Haustoria or sucking roots are found in which of the following?

A) Wheat B) Mango
C) Chestnut D) Cuscuta
 
Answer & Explanation Answer: D) Cuscuta

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