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11th Standard English Medium Physics Subject Oscillations Book Back 3 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 15

    Part I

    5 x 3 = 15
  1. A nurse measured the average heart beats of a patient and reported to the doctor in terms of time period as 0.8 s. Express the heart beat of the patient in terms of number of beats measured per minute.

  2. A spring balance has a scale which ranges from 0 to 25 kg and the length of the scale is 0.25m. It is taken to an unknown planet X where the acceleration due to gravity is 11.5 m s−1. Suppose a body of mass M kg is suspended in this spring and made to oscillate with a period of 0.50 s. Compute the gravitational force acting on the body.

  3. Consider two springs with force constants 1 N m−1 and 2 N m−1 connected in parallel. Calculate the effective spring constant (kp) and comment on kp.

  4. If the length of the simple pendulum is increased by 44% from its original length, calculate the percentage increase in time period of the pendulum.

  5. Write down the kinetic energy and total energy expressions in terms of linear momentum, For one-dimensional case.

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