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Physics Test 72

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Physics Test 72
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Weekly Quiz Competition
  • Question 1
    4 / -1

    Equivalent resistance between a and b will be:-

    Solution

     

  • Question 2
    4 / -1

    Potential V is:-

    Solution

     

  • Question 3
    4 / -1

    Current i is:-

    Solution

     

  • Question 4
    4 / -1

    A body starts moving with a velocity v0 = 10 m/s. it experiences a retardation equal to 0.2 v2. It's velocity after 2sec will be :-

    Solution

     

  • Question 5
    4 / -1

    A car starts from rest. Its acceleration-time graph is shown. Velocity of car at t = 20 sec will be :-

    Solution

     

  • Question 6
    4 / -1

    A person is standing on the top of a building of height 25 m. He want to throw a ball towards a boy who stands on top of another building of height 20 m at distance 15 m from first building. For which horizontal speed of projection, it is possible :

    Solution

     

  • Question 7
    4 / -1

    For a projectile, angle of elevations from O and O' are 45° and 30° respectively at position P. Angle of projection (θ) will be :

    Solution

     

  • Question 8
    4 / -1

    A stone fall freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in first three seconds of its motion. The stone remains in the air for :

    Solution

    Distance covered in first three second

    It is the last second of journey so time of flight = 5 sec.

     

  • Question 9
    4 / -1

     

    For a projectile motion in X–Y plane. Find wrong statement.

    Solution

     

  • Question 10
    4 / -1

    A ship is travelling with velocity  km/hr, a second ship B appears to have a velocity  km/hr. What is true velocity of the ship B ? (In km/hr)

    Solution

     

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