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Transfer of Heat
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Transfer of Heat
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Transfer of Heat
The movement of cold air from the land towards the sea is called
wind energy
planetary wind
land breeze
sea breeze
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Transfer of Heat
In home utensils such as handles of sauce-pans, spoons, hot-plates etc. we use
plasma
good conductors
bad conductors
mercury
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Transfer of Heat
When the quick transfer of heat is required through a body, we use
mercury
bad conductors
plasma
good conductors
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Transfer of Heat
White and polished surface reflects more heat than
black surface only
rough surface only
polished surface
black and rough surface
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Transfer of Heat
If the temperature of an object is higher than its surroundings then it is
radiating more heat than absorbing
conducting more heat than absorbing
absorbing more heat than radiating
conducting less heat than radiating
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Everyday Science
The good conductors of heat is
water
wool
rubber
metal
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Transfer of Heat
The rate of flow of heat across the opposite faces of a meter cube of a substance maintained at the temperature difference of 1 kelvin is called its
thermal radiation
flow of energy
thermal conductivity
convection
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Transfer of Heat
Wood, cork, cotton, rubber, glass etc. are
bad conductors
good conductors
good convections
bad convections
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Everyday Science
Bad conductors of heat are also called
convectors
insulators
radiant
termaids
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Transfer of Heat
The surface which absorbs more heat is
black and rough
white and rough
red and rough
pink and rough
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