SOLAR SYSTEM

UNIVERSE

THE SUN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The number of sunspots on the sun varies in a cycle that is about how long?
A
10-11 Years
B
12 minutes
C
100, 000 Years
D
12-13 Years
Explanation: 

Detailed explanation-1: -A peak in the sunspot count is referred to as a time of solar maximum, whereas a period when few or no sunspots appear is called a solar minimum. The 11-year sunspot cycle is actually half of a longer, 22-year cycle of solar activity During this period, sunspot counts reach maximum and minimum twice.

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: -The sunspot cycle averages about 11 months. In the proton-proton chain, helium atoms are fused into hydrogen. The Sun is actually more luminous at sunspot minimum than at maximum.

Detailed explanation-5: -The sun’s 11 year cycle is a symptom of a longer 22 year cycle called the solar cycle, or Hale Cycle, which affects the sun’s magnetic fields. Every 11 years, the sun’s poles flip. North becomes south and south becomes north. So every 22 years, the poles return to the position where they started the cycle.

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