How long does it take for radiation from a cesium-133 atom to complete 1.5 million cycles?

How long does it take for radiation from a cesium-133 atom to complete 1.5 million cycles?

Answer:

Time taken for radiation from a cesium-133 to complete 9,192,631,770 cycles is 1s.
Then the time taken for radiation from a cesium-133 to complete 1.5million cycles is
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