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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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Filed Under: Physics
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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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Filed Under: Physics
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Q:

What is the unit of the physical quantity "Capacitance"?

A) weber B) farad
C) tesla D) ohm
 
Answer & Explanation Answer: B) farad

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Filed Under: Physics
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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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Filed Under: Indian Politics
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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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Filed Under: General Science
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Q:

To make India a cashless economy by pushing cashlesstransaction, which committee is constituted by thegovernment?

A) Adhyarjuna Committee B) Amitabh Kant Committee
C) A Ghosh Committee D) Abid Hussain Committee
 
Answer & Explanation Answer: B) Amitabh Kant Committee

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Filed Under: General Awareness
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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.
Pour the juice _____ the glass.

A) in B) into
C) onto D) on
 
Answer & Explanation Answer: B) into

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Filed Under: English
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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.
“I‘m going to the gym now,” said Param.

A) Param said that he is going to the gym then. B) Param said that he has gone to the gym then.
C) Param said that he had gone to the gym then. D) Param said that he was going to the gym then.
 
Answer & Explanation Answer: D) Param said that he was going to the gym then.

Explanation:
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