Questions

Q:

Saturn is the _______ planet from the Sun.

A) 2nd B) 4th
C) 6th D) 8th
 
Answer & Explanation Answer: C) 6th

Explanation:
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Q:

If water smells bad, then that odour can be removed by adding

A) alum B) bleach
C) activated carbon D) deactivated nitrogen
 
Answer & Explanation Answer: C) activated carbon

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Q:

What is the name of the balloon – borne instrument set to be launch by NASA to study heavy cosmic particles?

A) Super LAMBA B) Super TIGER
C) Super LION D) Super MAMA
 
Answer & Explanation Answer: B) Super TIGER

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Q:

What is the reason for formation of Mirage in desert?

A) Refraction of light B) Reflection of light
C) Total internal reflection of light D) Both Refraction and Total internal reflection of light
 
Answer & Explanation Answer: D) Both Refraction and Total internal reflection of light

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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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Q:

If a perfect square, not divisible by 6, be divided by 6, the remainder will be

A) 1, 3 or 5 B) 1, 2 or 5
C) 1, 3 or 4 D) 1, 2 or 4
 
Answer & Explanation Answer: C) 1, 3 or 4

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Q:

What is the value of (tan45° + 1/√2) ?

A) 5/√3 B) 7/2√3
C) (√2+1)/√2 D) 4/√3
 
Answer & Explanation Answer: C) (√2+1)/√2

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Q:

Find equation of the perpendicular bisector of segment joining the points (2,-5) and (0,7)?

A) x - 6y = 5 B) x + 6y = -5
C) x - 6y = -5 D) x + 6y = 5
 
Answer & Explanation Answer: C) x - 6y = -5

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