1.a little amount of water is poured into a pan and is kept on the flame of the gas to boil, namee the modes of transfer of heat in this case . [ a] how many modes trsnsfer takes place ? [b] the handle/body ofthe pav is very hot . by what mode of transfer it gets heated? [c] the etire water starts boiling. after some time by what mode of transfer it gets heated ?[d] steam is beng formed and heat is being transferred to the surrondings. by what mode of transfer heat is being transferred to the surronding?[d] what will happen if the vessel is painted black from insde and outside? [e] what will happen if the vessel ispainted silver from inside and outside?
2.Our palm gets burnt by keeping it above a burning candle but it can be kept comfortable on the sides of a candle flame because heat travels upwards and when we keep our hands on top of the flame, the heat get 's to our hands and our hand burns but, when we keep our hands on the sides of the flame the heat does not reaches there and our hand is safe.
3.it is because heat always travels upwards.
4.Our palm gets burnt by keeping it above a burning candle but it can be kept comfortable on the sides of a candle flame because heat travels upwards and when we keep our hands on top of the flame, the heat get 's to our hands and our hand burns but, when we keep our hands on the sides of the flame the heat does not reaches there and our hand is safe.
