SOLAR SYSTEM

UNIVERSE

THE SUN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Sunspots vary in a cycle that lasts about
A
110 yrs
B
11, 000 yrs
C
11 yrs
D
110, 000 yrs
Explanation: 

Detailed explanation-1: -The Sun’s magnetic field goes through a cycle, called the solar cycle. Every 11 years or so, the Sun’s magnetic field completely flips. This means that the Sun’s north and south poles switch places. Then it takes about another 11 years for the Sun’s north and south poles to flip back again.

Detailed explanation-2: -The Solar Cycle: Sunspots increase and decrease through an average cycle of 11 years. Dating back to 1749, we have experienced 23 full solar cycles where the number of sunspots have gone from a minimum, to a maximum and back to the next minimum, through approximate 11 year cycles.

Detailed explanation-3: -The Sun has its ups and downs and cycles between them regularly. Roughly every 11 years, at the height of this cycle, the Sun’s magnetic poles flip-on Earth, that’d be like if the North and South Poles swapped places every decade-and the Sun transitions from sluggish to active and stormy.

Detailed explanation-4: -Analysis determines we are in Solar Cycle 25 We are now in Solar Cycle 25 with peak sunspot activity expected in 2025, the panel said. Solar Cycle 24 was average in length, at 11 years, and had the 4th-smallest intensity since regular record keeping began with Solar Cycle 1 in 1755.

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