Q141
Open questionWhich of the following criteria is used for any metal to be used as a cooking material?
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Physics GK · all questionsHeat and Thermodynamics
Heat and Thermodynamics
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Q142
Open questionWhy two thin shirts can keep us warmer than a single thick shirt in winter?
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Q143
Open questionThe normal temperature of human body is 98.4°F. It's equivalent temperature (in °C) is
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Q144
Open questionAt which temperature is the density of water maximum?
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Q145
Open questionThe temperature at which a liquid changes from its liquid state to a solid state is called-
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Q146
Open questionIf the work done on the system or by the system is zero, then which one of the following statement for a gas kept at a certain temperature is correct?
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Q147
Open questionThe absolute zero temperature is 0°K. In °C unit, which one of the following is the absolute zero temperature?
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Q148
Open questionWhat will be the boiling point of water in the Kelvin scale?
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Q149
Open questionIn the night wind blows fast, dew is not formed because
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Q150
Open questionFood gets cooked faster in a pressure cooker because
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Q151
Open questionIf the door of a refrigerator is kept open, than which of the following is true?
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Q152
Open questionThe normal temperature of human body on the Kelvin scale is
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Q153
Open question°F = . . . . . . . . . °C
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Q154
Open questionAssertion (A): Black hole is such a celestial existence which cannot be seen by telescope.
Reason (R): The gravitational field of black hole is much strong that even light does not escape from it.
Reason (R): The gravitational field of black hole is much strong that even light does not escape from it.
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Q155
Open questionRefers to absolute zero temperature-
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Q156
Open questionAssertion (A): Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons.
Reason (R): Ammonia can be liquefied at ambient temperatures at low pressures.
Reason (R): Ammonia can be liquefied at ambient temperatures at low pressures.
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Q157
Open questionWhen hot liquid is poured into a thick glass tumbler, it cracks because glass
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Q158
Open questionMaximum temperature inside pressure cooker depends on
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Q159
Open questionWhy is it difficult to measure the coefficient of expansion of a liquid than solid?
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Q160
Open questionWhen ice melts, then
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