Q:

The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

A) Galileo	B) Martin Luther
C) Johannes Kepler	D) Copernicus

Answer & Explanation Answer: C) Johannes Kepler

Explanation:

Kepler’s laws of planetary motion state that (a) All planets move in elliptical orbits with the Sun at one of the focal points (b) The radius vector drawn from the sun to a planet sweeps out equal areas in equal time intervals. This follows from the fact that the force of gravitation on the planet is central and hence angular momentum is conserved. (c) The square of the orbital period of a planet is proportional to the cube of the semi major axis of the elliptical orbit of the plane.

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Filed Under: Physics
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Q:

....... is the property of attracting electrons by the halogen atoms in a molecule

A) Electron affinity	B) Electro positivity
C) Electro chemistry	D) Electro negativity

Answer & Explanation Answer: D) Electro negativity

Explanation:

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Q:

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

A) Millionaire	B) Omission
C) Foreign	D) Proprietry

Answer & Explanation Answer: D) Proprietry

Explanation:

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Filed Under: English
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Q:

Improve the bracketed part of the sentence.
Once you emerge as an individual, it is important to realise that your freedom has an impact (on) others.

A) at	B) for
C) in	D) No improvement

Answer & Explanation Answer: D) No improvement

Explanation:

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Q:

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Morose

A) Flatter	B) Gloomy
C) Friendly	D) Savvy

Answer & Explanation Answer: B) Gloomy

Explanation:

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Q:

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Evanescent

A) Enticing	B) Fleeting
C) Erratic	D) Elusive

Answer & Explanation Answer: A) Enticing

Explanation:

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Q:

The saliva in human beings contains which enzyme?

A) Pepsin	B) Salivary Amylase
C) Rennin	D) Trypsin

Answer & Explanation Answer: B) Salivary Amylase

Explanation:

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Filed Under: Biology
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Q:

The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.

A) Electroplating	B) Galvanisation
C) Rusting	D) Crystallisation

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