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:

With reference to gravity, what is G called?

A) Gravitational constant	B) Gravitational attraction
C) Gravitational force	D) Acceleration due to gravity

Answer & Explanation Answer: A) Gravitational constant

Explanation:

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Q:

Which of the following bears flowers?

A) Bryophyta	B) Pteridophyta
C) Gymnosperms	D) Angiosperms

Answer & Explanation Answer: D) Angiosperms

Explanation:

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Filed Under: Biology
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Q:

Lavani is a folk dance of _____.

A) Manipur	B) Andhra Pradesh
C) Jammu & Kashmir	D) Maharashtra

Answer & Explanation Answer: D) Maharashtra

Explanation:

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Filed Under: Indian Culture
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Q:

In perfect competition a firm maximizes profit by _____.

A) setting price such that price is equal to or greater than its marginal costs	B) setting output such that price equals average total costs
C) setting output such that price equals marginal costs	D) setting price so that it is greater than marginal cost

Answer & Explanation Answer: C) setting output such that price equals marginal costs

Explanation:

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Filed Under: Indian Economy
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Q:

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong. Politics is the _____ of expediency and need not always be _____. If something is wrong and _____ expedient, it cannot be _____.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong.

A) discussed	B) identified
C) recognised	D) rectified

Answer & Explanation Answer: B) identified

Explanation:

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Filed Under: English
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Q:

Goecha La is a pass in which of the following Indian State?

A) Sikkim	B) Assam
C) Meghalaya	D) Uttarakhand

Answer & Explanation Answer: A) Sikkim

Explanation:

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Filed Under: Indian Geography
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Q:

The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.

A) Vinegar	B) Ash
C) Baking Soda	D) Copper

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