A wooden block of relative density 0.4 floats in a liquid of density 1600 kg m\(^{-3}\). What fraction of its volume is immersed?
A
0.15
B
0.10
C
0.25
D
0.20
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Answer: C
Fraction immersed = \(\frac{\text{density of block}}{\text{density of liquid}}\) = \(\frac{400}{1600}\) = 0.25.
Source: WAEC / JAMB / NECO Classroom Archive (Record #74381)