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Q:

A series of fast moving still pictures can be made to appear as a moving picture because the eye 

A) can focus very rapidly as pictures change B) is quicker than the brain
C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second D) can shut out some of the light
 
Answer & Explanation Answer: C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second

Explanation:

The eye can see images separately only if they are exhibited at an interval of more than 1/10 of a second. In the case of a movie, the still pictures come one after the other at less than this minimum interval. So we do not see them separately but only as a continuous moving picture.

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Filed Under: Physics

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Q:

Washing soda is the common name for

A) Sodium Bicarbonate B) Calcium Carbonate
C) Sodium Carbonate D) Calcium Bicarbonate
 
Answer & Explanation Answer: C) Sodium Carbonate

Explanation:

Washing soda is the common name for Sodium Carbonate (Na2CO3). It is also called as Soda Ash.

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Filed Under: Chemistry
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Q:

Who is the author of ' Tom Sawyer '

A) John Ruskin B) William Shakespeare
C) Leo Tolstoy D) Mark Twain
 
Answer & Explanation Answer: D) Mark Twain

Explanation:
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Filed Under: Books and Authors

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Q:

"Kargil Vijay Diwas" was observed on _____.

A) 26 July B) 27 July
C) 25 July D) 29 July
 
Answer & Explanation Answer: A) 26 July

Explanation:
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Filed Under: Important Days and Years
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Q:

Which article of the Indian Constitution deals with the creation of All India Services?

A) 315 B) 313
C) 312 D) 311
 
Answer & Explanation Answer: C) 312

Explanation:

312-Article of the Indian Constitution deals with the creation of All India Services.

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Filed Under: Indian Politics
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2 3637
Q:

The first time in india that land was divided into different categories for the purpose of revenue, taking into account the quality of land and its productive capacity, was during the reign of 

A) Alauddin Khilji B) Sher Shah Suri
C) Feroze Tughlaq D) Akbar
 
Answer & Explanation Answer: B) Sher Shah Suri

Explanation:
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Filed Under: Indian History

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Q:

According to the 2001 Census,Maharashtra has the largest urban population and it is followed by

A) Uttar Pradesh and Tamil Nadu B) Delhi and Punjab
C) Haryana and Gujarat D) West bengal and Delhi
 
Answer & Explanation Answer: A) Uttar Pradesh and Tamil Nadu

Explanation:
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Filed Under: Indian Economy

1 3632
Q:

Which one of the following is not true for minerals?

A) they can be a liquid, solid, or glass B) they can be identified by characteristic physical properties
C) they have a specific, internal, crystalline structure D) they have a specific, predictable chemical composition
 
Answer & Explanation Answer: A) they can be a liquid, solid, or glass

Explanation:

A mineral is a naturally occurring, inorganic solid, with a definite chemical composition. They cannot be in liquid or gas state. They exists only in solid state.

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Filed Under: Chemistry
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