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Dual Nature of Radiation and Matter Test - 80

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Dual Nature of Radiation and Matter Test - 80
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  • Question 1
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    A 600 W mercury lamp emits monochromatic radiation of. wave length  331.3 nm x $${ 10 }^{ -34 }$$$$l=5,v=3x{ 10 }^{ 5 }{ ms }^{ -1 }$$)
    Solution

  • Question 2
    1 / -0
    In the following diagram if $$\mathrm { V } _ { 2 } > \mathrm { V } _ { 1 }$$ then $$-$$

    Solution

  • Question 3
    1 / -0
    The velocity of an electron in the ground state of hydrogen atom is $$2.2\times 10^{6}m/s$$. The De-Broglie wavelength associated with a muon in the ground state of a muonic hydrogen will be -$$(m\mu =207 m_{e}   , h = 6.62 \times 10^{-34}Js)$$
  • Question 4
    1 / -0
    During an $$'\alpha '$$ particle decay from a nuclei at rest of atomic mass 284, the wavelength of the wave associated with the $$'\alpha '$$ particle is $$'\lambda '$$. Then the wavelength of the wave associated with the daughter nuclei must be
  • Question 5
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    An electron is continuously accelerated in a vacuum tube by applying a potential difference. If the De Broglie's wavelength is decrease by $$10 \%$$ the change in the kinetic energy of the electron is nearly

    Solution

  • Question 6
    1 / -0
    A plane polarized monochromatic EM wave is traveling in vacuum along z-direction such that at $$t=t_{1}$$ it is found that the electric field is zero at a spatial point $$z_{1}$$. The next zero that occurs in its neighborhood is at $$z_{2}$$. The frequency(in Hz) of the electromagnetic wave is :
  • Question 7
    1 / -0
    If the de-Broglie wavelengths associated with a proton and an $$\alpha$$-particle are equal, then the ratio of velocities of the proton and the a-particle will be:   
    Solution

  • Question 8
    1 / -0
    Calculate the momentum of a particle which has a de-broglie $$\lambda$$ of $$2.5 \times 10^{-10} \mathrm{m} $$.
    Solution

  • Question 9
    1 / -0
    If $$\lambda$$ the de-Broglie wavelength of a thermal neutron at $$27^0C$$. The wavelength of the same neutron at $$927^0C$$ is:
    Solution

  • Question 10
    1 / -0
    A proton moves on a circular path of radius $$6.6\times { 10 }^{ -3 }$$m in a perpendicular magnetic field of $$0.625$$ tesla. The De broglie wavlength associated with the proton will be:
    Solution

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