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Physics Test 3...

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  • Question 1
    4 / -1

    Due to the superposition of the certain number of waves, the equation of the particle at a point is given by z= 40sin2(100t)*cos(50t)sin(50t). Find the number of waves superimposed in the given wave equation.

  • Question 2
    4 / -1

    A block of mass 5 kg is dropped from a height of 5 m over a board which is supported by two parallel and same springs of spring constant 100 N/m. Find the work done by each spring when the block comes to rest. (Take g= 10 m/s2)

  • Question 3
    4 / -1

    In the first case, a spring is pulled by 10 cm while in the second case, four springs are attached in parallel and pulled simultaneously. By what distance, should the four springs be pulled to get energies stored in them, in total, equal to the energy stored in the spring from the first case?

  • Question 4
    4 / -1

    Which one of the following statements is true?

     

  • Question 5
    4 / -1

    If mass of proton= 1.008 amu and mass of neutron= 1.009 amu, then the binding energy per nucleon for 12C6 (mass= 12.0107 amu ) is,

  • Question 6
    4 / -1

    Which of the following is true?

  • Question 7
    4 / -1

    If the frequency of 4*1014 Hz is incident on a metal surface, find the work function of the metal. Take the stopping potential as 1 eV.

  • Question 8
    4 / -1

    Which of the following is not true?

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