A metallic sphere of mass 1 kg and volume 2 × 10-4 m³ is completely immersed in water. The buoyant force exerted by water on the sphere is:
2.5 N
Using the formula for buoyant force: F_b = ρgV
ρ (density of water) = 1000 kg/m³, g = 10 m/s², V = 2 × 10-4 m³
F_b = 1000 × 10 × 2 × 10^-4 = 2 N
The buoyant force exerted on the sphere is 2 N. Therefore, the correct answer is (c) 2 N.
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______ is used in periscope.
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B. Decreases
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