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:

Tsunami waves are the undersea occurrence of earthquake exceeding 7.5 on Richter scale. Which one of the following statements regarding this is not correct?

A) It often generates strong waves	B) The pacific coasts are most vulnerable to Tsunami waves.
C) Tsunami waves are also called high-energy tidal waves or seismic sea waves.	D) Tsunami is a Latin word.

Answer & Explanation Answer: D) Tsunami is a Latin word.

Explanation:

All are correct except D, as Tsunami is a Japanese word

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Filed Under: General Science
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Q:

Which of the following processes is responsible for causing rain?

A) Filtration	B) Evaporation and Condensation
C) Evaporation	D) Condensation

Answer & Explanation Answer: B) Evaporation and Condensation

Explanation:

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Q:

Which of the following was published by Gandhji during his stay in South Africa?

A) Young India	B) Indian Opinion
C) Nav Jivan	D) None of these

Answer & Explanation Answer: B) Indian Opinion

Explanation:

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Filed Under: Indian Politics

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Q:

The oldest oil field in Asia is located in

A) Gujarat	B) Assam
C) Arunachal Pradesh	D) Nagaland

Answer & Explanation Answer: B) Assam

Explanation:

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Filed Under: Indian Geography
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Q:

Increased RBC's in the blood leads to a condition called __________ .

A) Anemia	B) Haemophilia
C) Polycythemia	D) Leukaemia

Answer & Explanation Answer: C) Polycythemia

Explanation:

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Filed Under: Biology

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Q:

Ringworm is a disease caused by

A) Fungi	B) Bacteria
C) Virus	D) Flies

Answer & Explanation Answer: A) Fungi

Explanation:

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Filed Under: Biology
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Q:

BCG vaccine is given to protect from which of the following?

A) Jaundice	B) Anaemia
C) Tuberculosis	D) Polio

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