A gamma ray with a frequency of 6.0x10^19 Hz is fired on an unknown object in space. What is its wavelength?
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(b) minimum wavelength of X-rays produced by 30 kV electrons. ... (3 × 104 x 1.6 × 10−19)/ (6.626 × 10−34) ... Hence, the maximum frequency of X-rays produced is 7.24 x 1018 Hz.
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