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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Q:

The washing machine works on the principle of ____________

A) Dialysis	B) Diffusion
C) Reverse osmosis	D) Centrifugation

Answer & Explanation Answer: D) Centrifugation

Explanation:

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Q:

Select the word with the correct spelling.

A) encroch	B) stingiely
C) capittate	D) placated

Answer & Explanation Answer: D) placated

Explanation:

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Q:

India was ranked at which place among emerging economies on Inclusive Development Index (IDI-2018) released by World Economic Forum (WEF)?

A) 26th	B) 47th
C) 62nd	D) 81st

Answer & Explanation Answer: C) 62nd

Explanation:

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Q:

The summer capital of J&K Government is

A) Jammu	B) Srinagar
C) Gulmarg	D) Anantnag

Answer & Explanation Answer: B) Srinagar

Explanation:

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Q:

In how many parts is the human brain divided?

A) 2	B) 3
C) 4	D) 5

Answer & Explanation Answer: B) 3

Explanation:

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Filed Under: Biology
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Q:

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A thing no longer in use

A) Illusion	B) Illegal
C) Obsolete	D) Historic

Answer & Explanation Answer: C) Obsolete

Explanation:

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Q:

The bodies of penguins are _________________ and their feet have webs, making them good swimmers.

A) heavy	B) feathery
C) streamlined	D) oily

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