11. Erg X Sec is the unit of

1. 1. Angular momentum

   
   
   

   2. Linear momentum

   
   
   

   3. Planck's constant

   
   
   

   4. Energy

   
   
   

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   N/A

   Correct Option: C

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12. Unit of resistance is

1. 1. volt X ampere

   
   
   

   2. Volt²

   
   
   

   3. volt / ampere

   
   
   

   4. ampere / volt

   
   
   

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   N/A

   Correct Option: C

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13. A spring balance is graduated at sea level. If a body is weighed with this balance at consecutively increasing heights from the earth's surface, the weight indicated by the balance will

1. 1. Go on increasing continuously

   
   
   

   2. Go on decreasing continuously

   
   
   

   3. Remain the same

   
   
   

   4. First increase and then decrease

   
   
   

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   N/A

   Correct Option: B

   N/A

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14. A person is sitting in a moving train and is facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is moving

1. 1. Forward and losing speed

   
   
   

   2. Forward and gaining speed

   
   
   

   3. Forward with uniform speed

   
   
   

   4. Backward with uniform speed

   
   
   

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   N/A

   Correct Option: B

   N/A

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15. Which of the following statements is false?

1. 1. The magnitude of a vector is always a scalars

   
   
   

   2. The total path length is always equal to the magnitude of the displacement vector of a particle

   
   
   

   3. The average speed of a particle is either greater or equal to the magnitude of the average velocity of the particle over the same interval of time

   
   
   

   4. Three vectors not lying in a plane can never add up to give a null vector

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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