Observe the given image and answer the given questions:
A metal pan containing water is placed over a flame. After some time, the pan becomes hot. The water inside the pan gradually gets heated, and warmth can also be felt around the flame and the hot pan without touching them.
1. Which observation in the activity indicates convection? -
2. Which mode of heat transfer is mainly responsible for heating the water throughout the pan? -
3. A student says that only one mode of heat transfer occurs in this activity. Is the statement correct? -
4. If the pan is removed from the flame but is still hot, which mode of heat transfer allows it to lose heat to the surroundings? -