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Cash counting machine
With reference to the image of a cash counting machine shown below, answer the questions that…
With reference to the image of a cash counting machine shown below, answer the questions that follow.
(i)[1.0]
Name the electromagnetic wave used in the machine to count and authenticate the notes.
(ii)[1.0]
Which electromagnetic radiation has a frequency greater than that of ultraviolet radiation but less than that of gamma radiation?
Answer
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From ISC 2026 Improvement Physics Paper 1, question 7.