Dual Nature of Radiation and Matter

Related Questions

• The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength $\lambda $ for sodium is $5460{\AA}$, the value of $\lambda $ for tungsten is

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• Hydrogen atom does not emit X-rays because

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• The de-Broglie wavelength of a particle moving with a velocity $2.25 \times 10^8$ m/s is equal to the wavelength of photon. The ratio of kinetic energy of the particle to the energy of the photon is (velocity of light is $3 \times 10^8$ m/s)

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• Assuming photoemission to take place, the factor by which the maximum velocity of the emitted photoelectrons changes when the wavelength of the incident radiation is increased four times, is

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• Penetrating power of X-rays depends on

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