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Q:

Study of earth is known as

A) Ecology B) Biology
C) Ethology D) Geology
 
Answer & Explanation Answer: D) Geology

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Filed Under: General Science
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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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Filed Under: Physics
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Q:

The force of friction between two surfaces will increase if:

A) a layer of lubricant is kept between the two surfaces B) the two surfaces are pressed harder
C) air gap is created between the two surfaces D) irregularities on both the surfaces are removed
 
Answer & Explanation Answer: B) the two surfaces are pressed harder

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Filed Under: Physics
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Q:

The given symbol stands for a/an ___ in an electric circuit.

A) resistor B) plug key
C) electric bulb D) battery
 
Answer & Explanation Answer: C) electric bulb

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Filed Under: Physics
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Q:

The absolute refractive index of air is

A) 1.03 B) 1.00003
C) 1.003 D) 1.0003
 
Answer & Explanation Answer: D) 1.0003

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Q:

Which of the following increased in the 1920's?

A) Farmers' debt B) Domestic demand for U.S. farm products
C) Prices for farm productsc) D) Foreign demand for U.S. farm products
 
Answer & Explanation Answer: A) Farmers' debt

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Filed Under: Indian History
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Q:

Who invented the bifocal glasses?

A) Thomas Alva Edison B) Benjamin franklin
C) Evangelista D) Isaac Newton
 
Answer & Explanation Answer: B) Benjamin franklin

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Filed Under: Inventions
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Q:

Who won Nobel prize for Physics in 2015?

A) Hiroshi Amano B) Takaaki Kajita
C) Isamu Akasaki D) Makoto Kobayashi
 
Answer & Explanation Answer: B) Takaaki Kajita

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Filed Under: Honours and Awards
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