Advertisements
Advertisements
Question
Maximum heat is absorbed by a ______ coloured object.
Options
radiation
white
conduction
blue
convection
bad conductor
good conductor
black
reflection
Advertisements
Solution
Maximum heat is absorbed by a black coloured object.
Explanation:
This is because black absorbs all wavelengths of light, converting them into heat energy. Lighter colours, on the other hand, reflect most of the light and absorb less heat.
RELATED QUESTIONS
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

Write true or false for a given statement.
On touching a lump of ice, we feel cold because some heat passes from our body to the ice.
Write true or false for a given statement.
Liquids are heated by conduction and radiation.
Fill in the blank
Heat transfer in liquids and gases is by ________.
Explain briefly the process of heat transfer by radiation.
______ of heat does not require a medium.
How does a fever get lowered by putting a cold compress on the forehead of a patient?
What are the modes of heat transfer?
Heat is the transfer of energy between two objects at different temperatures.
Take two similar transparent glass bottles having wide mouths. Put a few crystals of potassium permanganate or pour a few drops of ink in one bottle. Fill this bottle with hot water. Fill the other bottle with cold water. Cover the cold water bottle with a thick piece of paper such as a postcard. Press the postcard firmly with one hand and hold the bottle with the other hand. Invert the bottle and place it on top of the hot water bottle. Hold both the bottles firmly. Ask some other person to pull the postcard. Observe what happens. Explain.
