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Q:

Persistence of vision is the principle behind

A) Telescope B) Periscope
C) Cinema D) Microscope
 
Answer & Explanation Answer: C) Cinema

Explanation:

Optical illusion is what that refers to persistence of vision with a principle that multiple images blend into a single image in human mind and what is showed in cinema.

 

Hence, Persistence of vision is the principle behind cinema.

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Filed Under: Physics
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Q:

Geostationary orbit is at a height of

A) 6 km B) 1000 km
C) 3600 km D) 36,000km
 
Answer & Explanation Answer: D) 36,000km

Explanation:
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Filed Under: World Geography

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Q:

Which one of the following actors was awarded the Dada Saheb Phalke Award at the 59th National Film Festival

A) Soumitra Chatterjee B) Ketan Mehta
C) Shekhar Kapoor D) Mahesh Bhatt
 
Answer & Explanation Answer: A) Soumitra Chatterjee

Explanation:
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Filed Under: Honours and Awards

1 2698
Q:

V-RAM is used for access of the following ?

A) Programs B) Video & Graphics
C) Text & Images D) All
 
Answer & Explanation Answer: B) Video & Graphics

Explanation:

VRAM or (video RAM), reference to any type of random access memory (RAM) is a dual-ported variant of dynamic RAM (DRAM) used to store the framebuffer in graphics adapters.

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Filed Under: Computer
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9 2698
Q:

How many valence electrons are in carbon?

A) 2 B) 4
C) 6 D) 3
 
Answer & Explanation Answer: B) 4

Explanation:

The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

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Filed Under: Chemistry
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2 2697
Q:

Lightning is produced when 

A) Similar charges of electricity rush towards each other and then get repelled B) clouds strike against impurities in air and the friction burns up these impurities
C) strong opposite charges in different clouds break down the resistance offered by the intervening air D) water vapour produces electricity in the clouds
 
Answer & Explanation Answer: C) strong opposite charges in different clouds break down the resistance offered by the intervening air

Explanation:

When the resistance of the air between breaks down the current flows from the positive cloud to the negative cloud in a flash which we call lightning . The difference of potential involves is very high.

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Filed Under: Physics

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Q:

The atoms of the elements which have same number of neutrons are called

A) Isobars B) Isotopes
C) Isotones D) None
 
Answer & Explanation Answer: C) Isotones

Explanation:
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Filed Under: Chemistry

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Q:

Scientist who discovered blood groups

A) Krebs B) Pavlov
C) Karl Landsteiner D) Darwin
 
Answer & Explanation Answer: C) Karl Landsteiner

Explanation:
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Filed Under: Biology

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