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:

Black soil is also known by which of the following name ?

A) Khadar Soil	B) Bangar Soil
C) Alluivial Soil	D) Regur soil

Answer & Explanation Answer: D) Regur soil

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Filed Under: General Awareness
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Q:

Based on the common features like presence of notochord and dorsal hollow neural system, animals like fishes, amphibians, reptiles, birds along with mammals are included in which Phylum?

A) Mammalia	B) Chordata
C) Primata	D) Insecta

Answer & Explanation Answer: B) Chordata

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Filed Under: Biology
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Q:

Which of the following physiological symptoms are signs of stress?

A) Arthritis and carpal tunnel syndrome	B) Dental cavities and bone loss
C) Headaches and elevated blood pressure	D) Hearing and vision loss

Answer & Explanation Answer: C) Headaches and elevated blood pressure

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Filed Under: Biology
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Q:

Which of the following compounds has a double bond?

A) Acetylene	B) Ethene
C) Ethane	D) Methane

Answer & Explanation Answer: B) Ethene

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Filed Under: Chemistry
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Q:

___ is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.

A) Sublimation	B) Evaporation
C) Condensation	D) Liquidation

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