186. If want to calculate the pressure of a liquid at the bottom of vessel, the quantity which is not required to determine it, is

1. 1. Height of the liquid column

   
   
   

   2. Surface area of the bottom of the vessel

   
   
   

   3. Density of the liquid

   
   
   

   4. Acceleration due to gravity at the bottom of the vessel

   
   
   

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   N/A

   Correct Option: B

   N/A

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187. The excess of pressure inside a drop or bubble is

1. 1. Directly proportional to its mass

   
   
   

   2. Directly proportional to its radius

   
   
   

   3. Inversely proportional to its radius

   
   
   

   4. Inversely proportional to its surface tension

   
   
   

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   N/A

   Correct Option: C

   N/A

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188. The orbital speed of jupiter is

1. 1. Greater than the orbital speed of the earth

   
   
   

   2. Less than the orbital speed of the earth

   
   
   

   3. Equal to the orbital speed of the earth

   
   
   

   4. Zero

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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189. In an elastic collision

1. 1. Momentum is conserved but energy is not

   
   
   

   2. Energy is conserved but momentum is not

   
   
   

   3. Both momentum and energy are conserved

   
   
   

   4. Neither momentum nor energy is conserved

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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190. Two pieces of different metals, when completely immersed in water, experience equal upthrust then

1. 1. Both pieces have equal weight in air

   
   
   

   2. Both pieces have same density

   
   
   

   3. Both pieces have equal volume

   
   
   

   4. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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