141. A particle revolves round a circular path with a constant speed the acceleration of the particle is

1. 1. Along the circumference of the circle

   
   
   

   2. Along the tangent

   
   
   

   3. Along the radius

   
   
   

   4. Zero

   
   
   

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   N/A

   Correct Option: C

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142. An ideal liquid flows through a horizontal tube of variable diameter. The pressure is lowest where the

1. 1. Velocity is highest

   
   
   

   2. Velocity is lowest

   
   
   

   3. Diameter is largest

   
   
   

   4. None of these

   
   
   

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   N/A

   Correct Option: A

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143. A pendulum clock is set to give correct time at the sea level. This clock is moved to a hill station at an altitude of 2500 m above the sea level. In order to keep correct time on the hill station, the length of the pendulum

1. 1. Has to be reduced

   
   
   

   2. Has to be increased

   
   
   

   3. Needs no adjustment

   
   
   

   4. None of these

   
   
   

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   N/A

   Correct Option: A

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144. When two bodies stick together after the collision is said to be

1. 1. Perfectly elastic

   
   
   

   2. Partially elastic

   
   
   

   3. Completely inelastic

   
   
   

   4. None of these

   
   
   

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   N/A

   Correct Option: C

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145. The earth revolves round the sun in one year. If the distance between them becomes double, the period of revolution will be

1. 1. 1 / 2 year

   
   
   

   2. 2 √ 2 years

   
   
   

   3. 4 years

   
   
   

   4. 8 years

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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