Subject :NSO Class : Class 7
A block of wood is floating on water at 0°C, with a certain volume V above water level. The temperature
of water is slowly raised from 0°C. How will the
volume V change with rise of temperature?
AV will not change.
BV will always increase.
CV will decrease till 4°C and then increase.
DV will increase till 4°C and then decrease.
Ans 1:
Class : Class 7
Answer has to be C bcoz density increases till 4 degrees and then decreases.Hence the volume has to be the opposite of what is mentioned above.The volume will first decrease and then increase
Ans 2:
Class : Class 9
Ans 3:
Class : Class 7
Answer Is C
Ans 4:
Class : Class 7
Answer has to be C
Ans 5:
Class : Class 7
answer should be C
Ans 6:
Class : Class 9
Answer should be C
Ans 7:
Class : Class 7
The answer must be C due to the anomalous expansion of water until 4 Degrees Celsius.
Ans 8:
Class : Class 10
D