Q:

Crystal size in igneous rocks is determined by

Answer

Crystal size in igneous rocks is determined by rate of cooling i.e, the time taken by magma to cool down.

Crystal_size_in_igneous_rocks_is_determined_by1554209716.jpg image

Hence, the slower the rate of cooling the larger the crystals. The faster the rate of cooling the smaller the crystals.

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Subject: General Science Exam Prep: Bank Exams , AIEEE
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Q:

In communication satellite, multiple repeaters are known as

A) Modulators	B) Transponders
C) Detectors	D) Generators

Answer & Explanation Answer: B) Transponders

Explanation:

In communication satellite, multiple repeaters are known as Transponders.

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Q:

A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?

A) The wavelength of X-ray photon is less than the wavelength of visible radiation photon.	B) Both the photons have different energies.
C) The speeds of both the photons in vacuum are different	D) The frequency of X-ray photon is higher than the frequency of visible radiation photon.

Answer & Explanation Answer: C) The speeds of both the photons in vacuum are different

Explanation:

The speed of all the electromagnetic radiation are always same and equal to the numerical value 3 x 10^8m/sec.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Groundwater is found underground in the zone of

A) Penetration	B) Aeration
C) Saturation	D) Both B & C

Answer & Explanation Answer: D) Both B & C

Explanation:

Groundwater is all the water that has penetrated the earth's surface and is found in one of two soil layers. The one nearest the surface is the "zone of aeration", where gaps between soil are filled with both air and water. Below this layer is the "zone of saturation", where the gaps are filled with water.

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Filed Under: World Geography
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Q:

What has holes but holds water?

Answer

A sponge has many holes but it absorbs water and can hold them in it.

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Subject: Word Puzzles Exam Prep: CAT , Bank Exams , AIEEE
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Q:

If an animal is an ectotherm, it has?

A) A skeleton on the inside of its body	B) A body that does not produce much internal heat
C) A skeleton on the outside of its body	D) A body that regulates its own internal temperature

Answer & Explanation Answer: B) A body that does not produce much internal heat

Explanation:

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Filed Under: Animals and Birds
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Add fuel to the fire

A) Go from one bad situation to another	B) A cause becomes stronger when more people join
C) The flame will extinguish if it runs out of oil	D) Cause a situation to become worse

Answer & Explanation Answer: D) Cause a situation to become worse

Explanation:

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GRE , TOEFL

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Q:

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

A) stareotype	B) stereotype
C) iliterrate	D) stareotype

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