A hollow sphere has inner volume half the outer volume. Its $4/5\,th$ part is submerged when placed in water. The density of material is
A hollow sphere has inner volume half the outer volume. Its $4/5\,th$ part is submerged when placed in water. The density of material is
- A
$1.4 \times {10^3}\,kg/{m^3}$
- B
$1.5 \times {10^3}\,kg/{m^3}$
- C
$1.6 \times {10^3}\,kg/{m^3}$
- D
$17 \times {10^3}\,kg/{m^3}$
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