61. 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

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62. 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

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63. 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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   N/A

   Correct Option: B

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64. 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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   N/A

   Correct Option: C

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65. The tidal waves in the sea are primarily due to

1. 1. The gravitational effect of the sun on the earth

   
   
   

   2. The gravitational effect of the moon on the earth

   
   
   

   3. The rotation of the earth

   
   
   

   4. The atmospheric effect of the earth itself

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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