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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0 909

Q:

Which of the following has low resistivity?

A) Nichrome	B) Glass
C) Ebonite	D) Diamond

Answer & Explanation Answer: A) Nichrome

Explanation:

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Q:

International Date line passes through middle of __________ Ocean.

A) Arctic	B) Indian
C) Atlantic	D) Pacific

Answer & Explanation Answer: D) Pacific

Explanation:

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Filed Under: Indian Geography
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Q:

Champaner-Pavagadh Archaeological Park is in ________.

A) Rajasthan	B) Assam
C) Bihar	D) Gujarat

Answer & Explanation Answer: D) Gujarat

Explanation:

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Filed Under: Indian Geography
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Q:

Which of these languages is generally not spoken in Southern part of India?

A) Telugu	B) Konkani
C) Maithili	D) Malayalam

Answer & Explanation Answer: C) Maithili

Explanation:

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Filed Under: Indian Geography
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Q:

Among plants, three different genera Solanum, Petunia and Datura are placed in which family?

A) Cancidae	B) Solanaceae
C) Felis	D) Felidae

Answer & Explanation Answer: B) Solanaceae

Explanation:

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Filed Under: Biology
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2 909

Q:

Which of the following forms a base pair with thymine?

A) Adenine	B) Guanine
C) Cytosine	D) Thymine

Answer & Explanation Answer: A) Adenine

Explanation:

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Filed Under: Biology
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
Giving undue favours to one's own kith and kin

A) Ableism	B) Iconoclast
C) Maiden	D) Nepotism

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