एक धातु की चादर जिसमें एक गोलाकार छेद है, को समान रूप से गर्म किया जाता है। छेद का व्यास:

Which of the following is NOT a good conductor of heat?

Which liquid is the standard choice for use in traditional glass thermometers?

A black-painted pot and a white-painted pot are placed in the sun. Which will absorb more heat and get hotter?