SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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From the cold cup to your hand
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From the cold cup to the warm air
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From the ice to your hand
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From your warm hand to the cold cup.
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Detailed explanation-1: -How does the heat transfer? From your warm hand to the cold cup. Conduction.
Detailed explanation-2: -Heat transfer will continue until both objects have reached the same temperature or the same speed. For example, an ice cube in a glass of water eventually melts. This is because the heat from the water, which is warmer, flows to the ice cube until both are at the same temperature, and therefore no ice cube is left.
Detailed explanation-3: -Conduction is the flow of heat between two solid objects that are touching. Heat conducts from your warm fingertips into a cold can of soda. Convection is the transfer of heat with a liquid or gas.
Detailed explanation-4: -Any time two object touch, heat conduction will happen. Touching a hot iron is an example of conduction – the heat passes out of the iron and into your hand. So is holding an ice cube – the heat is conducted out of your hand, and into the ice cube (that’s why your hand feels cold).