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The volume of a sealed packet is 1 litre and its mass is 800 g . The packet is first put inside water with density 1 g cm and then in another liquid B with density 1.5 ~g ~cm ⁻³ . Then which one of the following statements holds true?

Options

  1. AThe packet will float in both water and liquid B.
  2. BThe packet will sink in both water and liquid B .
  3. CThe packet will sink in water but will float in liquid B .
  4. DThe packet will float in water and sink in liquid B.

Correct answer

A. The packet will float in both water and liquid B.

Step-by-step solution

Volume of the sealed packet V =1000 ~cm ^3 Mass of the sealed packet M =800 ~g The, Density of the packet =M / V=800 / 1000=0.8 ~g ~cm ⁻ 3 As the density of packet is less than that of water (density 1 ~g ~cm ⁻³ ) and liquid B density 1.5 ~g ~cm -3 ), it will float in water.

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