6. Masses of stars and galaxies are usually expressed in terms of

1. 1. Neutron mass

   
   
   

   2. Earth's mass

   
   
   

   3. Solar mass

   
   
   

   4. Lunar mass

   
   
   

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   N/A

   Correct Option: C

   N/A

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7. Pick out the only scalar quantity

1. 1. Power

   
   
   

   2. Electric fileld

   
   
   

   3. Magnetic momentum

   
   
   

   4. Average Velocity

   
   
   

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   N/A

   Correct Option: A

   N/A

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8. Which of the following is vector quantity?

1. 1. Momentum

   
   
   

   2. Pressure

   
   
   

   3. Energy

   
   
   

   4. Work

   
   
   

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   N/A

   Correct Option: A

   N/A

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9. For a body moving with constant speed in a horizontal circle, which of the following remains constant?

1. 1. Velocity

   
   
   

   2. Acceleration

   
   
   

   3. Centripetal force

   
   
   

   4. KE

   
   
   

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   N/A

   Correct Option: D

   N/A

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10. Which of following is not a vector quantity?

1. 1. Speed

   
   
   

   2. Velocity

   
   
   

   3. Torque

   
   
   

   4. Displacement

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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