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JEE Main Test 50
Result
JEE Main Test 50

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    Score

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Time Taken: -
  • Question 1/10
    4 / -1

    Solutions

     

  • Question 2/10
    4 / -1

    Solutions

     

  • Question 3/10
    4 / -1

    Solutions

     

  • Question 4/10
    4 / -1

    At some instant, a particle is moving along a straight line 2x - 3y = 2 and its co-ordinates on that line are (4, 2). Now, at another instant, the same particle is moving along a straight line 3x + 4y = 7 and its co-ordinates are (1, 1). Find the co-ordinates of that axis about which it is in pure rotation.

    Solutions

     

  • Question 5/10
    4 / -1

    Angular momentum of a particle rotating with a central force is constant due to

    Solutions

    A central force passes through the axis of rotation, so torque is zero.

    If no external torque is acting on a particle, the angular momentum of the particle will be constant.

  • Question 6/10
    4 / -1

    A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it?

    Solutions

    Measured value of the length of rod = 3.50 cm

    So, least count of the measuring instrument must be 0.01 cm = 0.1 mm.

    For a vernier scale, 

    10 MSD = 1 cm = 10 mm

    => 10 MSD = 1 cm = 10 mm

    Also, 9 MSD = 10 VSD

    LC = 1 MSD - 1 VSD = (1 - 0.9) mm = 0.1 mm

     

  • Question 7/10
    4 / -1

    What is A?

    Solutions

     

  • Question 8/10
    4 / -1

    Solutions

     

  • Question 9/10
    4 / -1

    Solutions

     

     

  • Question 10/10
    4 / -1

    Solutions

     

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