An X-ray tube produces a continuous spectrum of radiation with its short wavelength end at `0.66 Å`. What is the maximum energy of the photon in the radiation ?
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When the voltage applied to an X-ray tube increases from `10` to `20 kV` the wavelength difference between the ka line and the short wave cut-off of c
Correct Answer - `Cu (Z = 29)`
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An X-ray tube has nickel as target. The wavelength difference between the ka X-ray and the cut-off wavelength of continuous X-ray spectrum is 84 pm. F
Correct Answer - `14.8 kV`
2 Answers 1 views
(a) The rest mass energy of an electron is `m_(0)c^(2)=0.51MeV`. Can a photon of this energy create an electron in free space? (A) A single photon of
Correct Answer - (a) No (b) `m_(0)=(h^(2)v^(2))/(2c^(2)[hv-2m_(0)c^(2)])`
2 Answers 1 views
The wavelength of a photon is `1.4 Å`. It collides with an electron. Its wavelength after collision is `2.0 Å`. Calculate the energy of the scattered
Correct Answer - `4.26 xx 10^(-16) J`
2 Answers 2 views
The spectral line in the spectrum of light from a star is found to be shifted by 0.032% from its normal position towards the red end of the spectrum .
Correct Answer - `96 km s^(-1)`
2 Answers 9 views
What potential difference should be applied across an X-ray tube to get X-ray of wavelength not less than 0.10 nm? What is the maximum energy of a pho
Correct Answer - `[12.431 kV,1.99 xx10^(-15) J]`
2 Answers 1 views
Find the maximum potential difference which may be applied across an X-ray tube with tungsten target without emitting any characteristics K or L X-ray
Correct Answer - [Less than 11.3 kV]
2 Answers 1 views
Iron emits `K_alpha` X-ray of energy 6.4 keV and Calcium emits `K_alpha` X-ray of energy 3.69 keV. Calculate the times taken by an iron `K_a` photon a
Correct Answer - [10 us by both]
2 Answers 1 views
When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of `9.7 xx 10 ^18` Hz. Calculate the value of Planck constant f
Correct Answer - `4.12 xx 10^(-15) eV_(-s)`
2 Answers 1 views
A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by
Correct Answer - `[11.2eV]`
2 Answers 1 views