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Class XII Physics Atomic Nucleus 5
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If the series limit wavelength of Lyman series for the hydrogen atom is 912 Å, then the series limit wavelength for Balmer series of hydrogen atom is
Let λ1 be the wavelength of the Kα line from Pb204 and λ2 be the wavelength of the Kβ line from Pb206, then
A potential difference of 20 kV is applied across an X-ray tube. Find the minimum wavelength of X-rays generated.
The potential difference across the coolidge tube is 20 kV and 10 mA current flows through the voltage supply. Only 0.5 % of the energy carried by the electron striking the target is converted into X-rays. The power carried by X-ray is P.
The target used for production of X-ray beam must have -
As compared to 12C atom, 14C atom has–
The half life of 215 At is 100 µs. The time taken for the radio activity of a sample of 215At to decay to th of its initial value is –
The half life of 24Na is 15.0 h. How long does it take for 80 percent of a sample of this nuclide to decay? [ln 5 = 1.6]
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Aditya PriyantOct 28NEET & AIIMS