Discussion
The cycle of Sunspot Maxima having the same polarity is referred to as the :
Answer: B
The cycle between sunspot maxima of the same magnetic polarity is the 22-year cycle.
Sunspot numbers peak about every 11 years (the Schwabe cycle), but at each new cycle the magnetic polarity of the leading spots in each hemisphere reverses (Hale's law). The full magnetic cycle, after which the polarity is the same again, therefore takes two sunspot cycles, about 22 years, and is called the Hale cycle.
The 11-year cycle is the sunspot-number cycle, between maxima of opposite polarity. Seven- and five-year cycles are not standard solar cycles.
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