The graph between two temperature scales A and B is shown in Fig. Between upper fixed point and lower fixed point there are 150 equal division on scale A and 100 on scale B. The relationship for conversion between the two scales is given by
This is a multiple choice answer as classified in NCERT Exemplar
(b), (c), (d) When the hot milk in the table is transferred to the surroundings by conduction, convection and radiation.
According to newton's law of cooling temperature of the milk falls of exponentially. Heat also will be transferred from surroundings to the milk but will be lesser than that of transferred from milk to surroundings. So option b, c, d satisfy.
This is a multiple choice answer as classified in NCERT Exemplar
(a), (d) During the process AB temperature of the system is 00C . hence it represents phase change that is transformation of ice into water while temperature remains 00C.
BC represents rise in temperature of water from 00C to 1000C. now water starts converting into steam which is represented by CD.
Which is only represents by a, d options
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