11. If a liquid is heated in space under no gravity, the transfer of heat will take place by process of

1. 1. conduction

   
   
   

   2. convection

   
   
   

   3. radiation

   
   
   

   4. can not be heated in the absence of gravity

   
   
   

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1. View Hint View Answer Discuss in Forum

   radiation

   Correct Option: C

   radiation

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12. When water is heated from 0° C to 10° C, its volume

1. 1. increases

   
   
   

   2. decreases

   
   
   

   3. does not change

   
   
   

   4. first decreases and then increases

   
   
   

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1. View Hint View Answer Discuss in Forum

   first decreases and then increases

   Correct Option: D

   first decreases and then increases

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13. A metal sheet with a circular hole is heated. The hole

1. 1. gets larger

   
   
   

   2. gets smaller

   
   
   

   3. remains of the same size

   
   
   

   4. gets deformed

   
   
   

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1. View Hint View Answer Discuss in Forum

   gets larger

   Correct Option: A

   gets larger

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14. Scent sprayer is based on

1. 1. Charles's law

   
   
   

   2. Boyle's law

   
   
   

   3. Archimedes's principle

   
   
   

   4. Bernoulli's principle

   
   
   

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   Scent sprayer is based on Bernoulli's principle.

   Correct Option: D

   Scent sprayer is based on Bernoulli's principle.

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15. Pyrometer is used to measure

1. 1. air pressure

   
   
   

   2. humidity

   
   
   

   3. high temperature

   
   
   

   4. intensity of earthquake

   
   
   

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1. View Hint View Answer Discuss in Forum

   Pyrometer is used to measure high temperature.

   Correct Option: C

   Pyrometer is used to measure high temperature.

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