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Subject :NSO    Class : Class 5

Two beakers M and N of water were heated at different times with different burners. The graph shows the changes in the temperature of the water in beakers M and N.

Select the correct option regarding this activity.
(a) Water in beaker 'N' boils before the water in beaker 'M'.
(b) The water in beaker 'N' is heated with stronger flame.
(c) Water of both beakers reach the same temperature at 8.20 a.m.
(d) All of these.

Ans 1:

Class : Class 6
Ans is D because water in Beaker N boiled faster than beaker M, The water in beaker N was heated at a high flame as you can see that the water in beaker N was heated from 8:10 am and water in beaker M at 8 am, and water in both the beakers reached the same temperature at 8:20 am as you can see that the two lines met at 8:20 am.

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