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Physics Test - ...

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  • Question 1
    4 / -1

    Dimensions of torque is:

  • Question 2
    4 / -1

    A van moving at 40 km/h is to be stopped by applying brakes in the next 4 m. If the van weighs 2000 kg, what is the average force to be applied to stop it?

  • Question 3
    4 / -1

    The phase difference between the electric field and the magnetic field in the electromagnetic wave is:

  • Question 4
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    _________ developed the corpuscular theory of light.

  • Question 5
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    If λ is the wavelength of a hydrogen atom from the transition n = 3 to n = 1 , then what is the wavelength for doubly ionized lithium-ion for the same transition?

  • Question 6
    4 / -1

    The flow rate from a tap of diameter 1.25 cm is 3 lit / min . The coefficient of viscosity of water is 10−3 Pas. The nature of flow is:

  • Question 7
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    In a series resonant circuit, the AC voltage across resistance R , inductor L and capacitor C , are 5 V, 10 V and 10 V respectively. The AC voltage applied to the circuit will be:

  • Question 8
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    The built-in-potential profile in the depletion region of a p-n junction in equilibrium is shown in the figure. The depletion region width is 1 μm.

    Which of the following statements is/are true?

  • Question 9
    4 / -1

    An electron and a proton are allowed to fall through the separation between the plates of a parallel plate capacitor of voltage 5 V and separation distance h = 1 mm . Calculate the time of flight for both electron and proton:

  • Question 10
    4 / -1

    A light bulb and an open coil induction are connected in series to an ac source as shown in figure. Now an iron rod is inserted into the interior of the inductor. The glow of the light bulb will be:

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