Question : A white, and smooth surface is:
Option 1: Good absorber, and a good reflector of heat
Option 2: Bad absorber, and good reflector of heat
Option 3: Good absorber, and bad reflector of heat
Option 4: Bad absorber, and bad reflector of heat
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Correct Answer: Bad absorber, and good reflector of heat
Solution : The correct answer is a Bad absorber and a good reflector of heat.
White and smooth surfaces are bad absorbers and good reflectors of heat. All shiny surfaces are the best reflectors of heat radiation. When the heat radiation falls on the shiny or white surfaces, most of the heat radiations are reflected. Black surfaces are the best absorbers of heat.
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Question : The National Emblem of Italy is:
Option 1: Eagle
Option 2: White Eagle
Option 3: White Lily
Option 4: Lily
Question : Which among the following is a surface-to-surface missile of India?
Option 1: Javelin
Option 2: AIM-120 AMRAAM
Option 3: Spike
Option 4: Agni V
Question : The energy that can harness heat stored below the earth's surface is known as:
Option 1: thermal energy
Option 2: nuclear energy
Option 3: tidal energy
Option 4: geothermal energy
Question : Metal tea pots have wooden handles because:
Option 1: wood is bad conductor of heat
Option 2: it prevents electric shock
Option 3: it gives beauty to the pots
Option 4: it is hygenic
Question : Muscles are of three types. Which of the following is not one of them?
Option 1: Sesamoids
Option 2: Smooth
Option 3: Cardiac
Option 4: Skeletal
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