Questions

Q:

Atomic number of which of the following elements is greater than that of Phosphorus?

A) Aluminium B) Silicon
C) Chlorine D) Magnesium
 
Answer & Explanation Answer: C) Chlorine

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Q:

Which of the following is the third member of the Dobereiner triad, that also features Lithium and Sodium?

 

A) Potassium B) Boron
C) Barium D) Hydrogen
 
Answer & Explanation Answer: A) Potassium

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Q:

The Kovvada Nuclear Park project is proposed to be setup in which State?

A) Rajasthan B) Uttar Pradesh
C) Andhra Pradesh D) Karnataka
 
Answer & Explanation Answer: C) Andhra Pradesh

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Q:

Kishanganga Project is a major reason for contention between India and________.

A) Nepal B) Bangladesh
C) Pakistan D) China
 
Answer & Explanation Answer: C) Pakistan

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Q:

How much area of Bhutan is approximately covered with forest?

A) 45% B) 61%
C) 72% D) 84%
 
Answer & Explanation Answer: C) 72%

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Q:

The first Asian city to host Summer Olympics was _________ .

A) Moscow B) Beijing
C) Tokyo D) Singapore
 
Answer & Explanation Answer: C) Tokyo

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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:

At what temperature (in Fahrenheit) pure water freezes?

A) 32 B) 0
C) 48 D) 37
 
Answer & Explanation Answer: A) 32

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