12. What can be the maximum mass of a solid block of dimension 15 cm long, 10cm width
and 5 cm thick, if it floats on water?
Answers
Answered by
5
Answer:
Correct option is
C
1:4
Pressure is the force per unit area. So, P=F/A
Thus, minimum surface area (5cm×10cm) will give the maximum pressure and maximum area (20cm×10cm) will give the minimum pressure.
So, P
max= 50×10
−42gN/m
2 and P
min= 200×10
−42g
N/m 2
Thus, p
max p
min =50/200=1/4
The option C will be right.
Explanation:
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