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Physics Test-7...

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  • Question 1
    4 / -1

    A student measure certain lengths using a meter scale having least count equal to 1 mm. Which of the following measurements are more precise?

  • Question 2
    4 / -1

    The ratio of speed of electron in ground state of hydrogen atom to that of light is

  • Question 3
    4 / -1

    Ratio of rate of heat conduction to the rate of internal energy storage is in solid is known as _________.

  • Question 4
    4 / -1

    A current carrying rectangular loop is placed in the uniform magnetic field, if the angle between the area vector and the magnetic field is increased then the torque on the loop will:

  • Question 5
    4 / -1

    If the particle moves in uniform circular motion of radius 'r', the period 'T' of its motion is :

  • Question 6
    4 / -1

    Why are the glasses of building appears milky?

  • Question 7
    4 / -1

    If the frequency of the applied AC potential is increased in the R-L circuit, then the impedance of the circuit will:

  • Question 8
    4 / -1

    For any ‘AND GATE’ the three inputs are A, B and C then the output Y will be ________.

  • Question 9
    4 / -1

    While teaching in a class Mayank ask a question on the equilibrium of particle as shown in the figure and ask the student to find the weight of a body, if T2 = 100 N. Shreya gives the correct answer. So, what is the answer given by Shreya? 

  • Question 10
    4 / -1

    The magnetic flux linked with a coil varies as \(\phi=3 \mathrm{t}^{2}+4 \mathrm{t}+9\). The magnitude of the emf induced at \(\mathrm{t}=2\) sec is:

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