Q:

If the first and third members of a Dobereiner triad are Phosphorous and Antimony, the second member of this triad is

A) Calcium	B) Iodine
C) Arsenic	D) Sulphur

Answer & Explanation Answer: C) Arsenic

Explanation:

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Q:

Sunspots appear dark because they are

A) hotter than the rest of the Sun's surface.	B) more magnetic than the rest of the Sun's surface.
C) cooler than the rest of the Sun's surface.	D) None of the above

Answer & Explanation Answer: C) cooler than the rest of the Sun's surface.

Explanation:

Sunspots are a magnetic phenomenon on the Sun.

The reason a sunspot appears dark is that they are cooler than the rest of the Sun's surface and also the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface.

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Filed Under: Physics
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Q:

A solar eclipse occurs when

A) moon comes in the middle of sun and earth	B) sun comes in the middle of moon and earth
C) earth comes in the middle of moon and sun	D) All of the above

Answer & Explanation Answer: A) moon comes in the middle of sun and earth

Explanation:

A solar eclipse happens when the moon gets in the way of the sun's light and casts its shadow on Earth. Solar eclipses happen when the New Moon comes between the Sun and Earth and blocks out the Sun's rays.

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Q:

Find the potential energy gained by a body of mass 50 kg, if it is raised by 10m. (use g = 10 m/s2)

A) 50	B) 5000
C) 2500	D) 25

Answer & Explanation Answer: B) 5000

Explanation:

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Q:

From which of the following are the Fundamental duties adopted?

A) French Constitution	B) Indian Constitution
C) Spanish Constitution	D) USSR Constitution

Answer & Explanation Answer: D) USSR Constitution

Explanation:

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Filed Under: Indian Politics
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Q:

Which Article specifies the Fundamental Duties of every citizen?

A) Article 80	B) Article 343
C) Article 51A	D) Article 356

Answer & Explanation Answer: C) Article 51A

Explanation:

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Q:

Which is the closest star to our solar system?

A) Alpha Centauri	B) Beta Centauri
C) Proxima Centauri	D) Barnard

Answer & Explanation Answer: C) Proxima Centauri

Explanation:

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Filed Under: General Science
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Q:

Brain fever is a disease spread through which of the following?

A) Flies	B) Mosquito
C) Virus	D) Cockroach

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