When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 × 10^18 Hz. Calculate the value of Planck constant from these data.

Question

Kevin Nash · Answer

λ = hc/eV ; V = 40 kV, f = 9.7 * 10^18 Hz Or, h/c = h/eV ; or, i/f = h/eV ; or h = eV/f V – s = eV/f V –s = 40* 10^3/9.7* 10^18 = 4.12 * 10^15 eV-s.

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When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 × 10^18 Hz. Calculate the value of Planck constant from these data.

When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 × 10^18 Hz. Calculate the value of Planck constant from these data.

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When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 × 10^18 Hz. Calculate the value of Planck constant from these data.

When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 × 10^18 Hz. Calculate the value of Planck constant from these data.

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