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Q:

Which system is used by the Digital Computers to encode data and Programs?

A) Decimal B) Binary
C) Hexa decimal D) Octal
 
Answer & Explanation Answer: B) Binary

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Q:

Android is a mobile operating system designed primarilyfor touch screen mobile devices such as smartphones andtablets. Which among the following was the first Android Operating System?

A) Cupcake B) Alpha
C) Gingerbread D) Doughnut
 
Answer & Explanation Answer: B) Alpha

Explanation:

Alpha was android version 1.0 released on 23rdSeptember 2008. Android is continually developed byGoogle and the Open Handset Alliance (OHA), andhas seen a number of updates to its base operatingsystem since the initial release

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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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Q:

In the 42nd Constitutional Amendment 1976, which word was added to the Preamble?

A) Democratic B) Equality
C) Secular D) Socialist
 
Answer & Explanation Answer: C) Secular

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Q:

Who was the first Indian to be elected as the leader of the Communist International?

A) Jawaharlal Nehru B) P.C. Joshi
C) Sardar Vallabhai Patel D) M.N Roy
 
Answer & Explanation Answer: D) M.N Roy

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Q:

Who was the President of Indian National Congress at the time of Indian independence ?

A) Maulana Abdul Kalam Azad B) J. B. Kriplani
C) Jawahar Lal Nehru D) Rajendra Prasad
 
Answer & Explanation Answer: B) J. B. Kriplani

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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:

As per Newton's law of gravitation, the force between two bodies is ________.

A) directly proportional to the product of their masses B) directly proportional to the distance between them
C) directly proportional to the product of their radius D) directly proportional to the product of forces
 
Answer & Explanation Answer: A) directly proportional to the product of their masses

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