Which of the following statements is incorrect?
1) Cathode rays cany negative charge
2) Frequency of X-Rays is higher than that of the microwaves
3) Unit of wave number is m
4) X and X are isotones
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Answer:
unit of a wave number is M this statement is wrong
Explanation:
ke ke is called as wave number define reciprocal of wavelength represents number of wave cycle per unit length= k=1À
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