136. 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

   N/A

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137. 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

   N/A

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138. 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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139. Weightlessness experienced in spaceship is due to

1. 1. Absence of inertia

   
   
   

   2. Absence of gravity

   
   
   

   3. Absence of accelerating force

   
   
   

   4. Free fall of the spaceship

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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140. When the external torque on a system is zero, there will be conservation of its

1. 1. Linear momentum

   
   
   

   2. Angular momentum

   
   
   

   3. Total energy

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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