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 General Science Questions

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Q:

Which one of the following types of laser is used in laser printers?

A) Semiconductor laser B) Dye laser
C) Gas laser D) Excimer laser
 
Answer & Explanation Answer: A) Semiconductor laser

Explanation:
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58 20479
Q:

Statement I :

Portions of glacial troughs may exhibit remarkably flat floors.

Statement II :

The flat floor in a glacial trough is produced by uniform glacial erosion.

 

A) Both the statements are individually true and Statement II is the correct explanation of Statement I B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false   D) Statement I is false but Statement II is true
 
Answer & Explanation Answer: A) Both the statements are individually true and Statement II is the correct explanation of Statement I

Explanation:

Glaciers cut distinctive U-shaped valleys with a flat floor and steep sides. These are an example of a glacial erosion landform.

Example: As the main glacier erodes deeper into the valley, the tributary is left higher up the steep sides of the glacier.

 

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0 20444
Q:

How is the nitrogen taken up by the plants?

I. In the form of inorganic nitrates or nitrites
II. In the form of organic compounds
III. Directly taken up from the atmosphere

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: A) Only I and II

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1 20143
Q:

The distance in pitch between any two tones is called

 

A) Octave B) Dynamics
C) Interval D) Unison
 
Answer & Explanation Answer: C) Interval

Explanation:

The distance in pitch between any two tones is called an interval.

 

 

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Q:

Which of the following parts of the sun is easily visible only during a total solar eclipse? 

A) core B) photosphere
C) sunspots D) corona
 
Answer & Explanation Answer: D) corona

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139 20104
Q:

Who is the planet moving in the opposite direction than other planets in Solar System?

 

A) Neptune B) Pluto
C) Uranus D) Saturn
 
Answer & Explanation Answer: C) Uranus

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Q:

Potassium Permanganate is used for purifying drinking water, because

A) it is a sterilising agent B) it dissolves the impurities of water
C) it is a reducing agent D) it is an oxidising agent
 
Answer & Explanation Answer: D) it is an oxidising agent

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150 19051
Q:

Which of the following has got more heat capacity?

A) Iron piece B) Water
C) Gold piece D) Benzene
 
Answer & Explanation Answer: B) Water

Explanation:
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