Electrons of mass m with de-Broglie wavelength fall on the target in an X-ray tube. The…
Physics · NEET · NTA Exams — Dual Nature of Matter and Radiation
Electrons of mass m with de-Broglie wavelength \(\lambda\) fall on the target in an X-ray tube. The cutoff wavelength \(\left(\lambda_{g}\right)\) of the emitted X-ray is:
- \(\lambda_{a}=\frac{2 m^{2} c^{2} \lambda^{3}}{h^{2}}\)
- \(\lambda_{g}=\lambda\)
- \(\lambda_{a}=\frac{2 m c \lambda^{2}}{h}\)
- \(\lambda_{a}=\frac{2 h}{m c}\)
Answer
(A) _ a = 2 m^ 2 c^ 2 ^ 3 h^ 2
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- An electron is moving with a kinetic energy of 4.55 10^ -25 ~J . What will be the de-Broglie wavelength of…
- Work function of tungsten and sodium are 4.4 eV and 2.3 eV respectively. If the threshold wavelength of…
- An electron beam in an X-ray tube is accelerated through a potential of 40 x 10 3 V. These are then made to…
- A and B are two metals with threshold frequencies 1.8 10^ 14 ~Hz and 2.2 10^ 14 ~Hz . Two identical photons…
- In X-rays diffraction experiment distance between atomic lattice planes of diffraction grating is 2.8 × 10…
- Light of wavelength 5000 a A falls on a sensitive plate with photoelectric work function of 1.9 eV. The…
- When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectron…
- The kinetic energy of an electron with de-Broglie's wavelength of 0.3 nm is:
More Dual Nature of Matter and Radiation questions · Browse all practice questions