Question 44:
A cube of edge 20 cm is immersed completely in a rectangular vessel containing water. The measurements of the vessel are 25 cm × 25 cm. Find the rise (in cm) of water level.
Options :
- a) 20
- b) 16.5
- c) 12.8
- d) 8
correct answer : c)
Explanation :
Volume of submerged cube = 20³ = 8,000 cm³.
Base Area of vessel = 25 × 25 = 625 cm².
Rise in water level h = Volume / Base Area = 8,000 / 625 = 12.8 cm.