Sun spots are the one found on the outer surface of the Sun.
Consider the statements regarding Sun spots.
1) Sun spots region generally have lower temperature than the surrounding region on the Sun’s outer surface.
2) Sun spots do not have any effect on Earth’s climate.
3) Each period of weak Sun spot activity co-relates with the period of overall high solar radiation output from the Sun’s surface.
4) Sun spots generally have 11 year cycle.
Choose the correct statement/s from the following codes.
1, 2 only.
1, 3, 4 only.
1, 2, 4 only.
2, 4 only.
Explanation:
Sunspots are temporary phenomena on the photosphere of the Sun that appear visibly asdark spots compared to surrounding regions. They correspond to concentrationsof magnetic field that inhibit convection and result in reduced surface temperaturecompared to the surrounding photosphere. Sunspots usually appear as pairs, with each spothaving the opposite magnetic polarity of the other.Sunspot populations quickly rise and more slowly fall on an irregular cycle of 11 years,although significant variations in the number of sunspots attending the 11-year period areknown over longer spans of time.Since sunspots are darker than the surrounding photosphere it might be expected thatmore sunspots would lead to less solar radiation and a decreased solar constant. However,the surrounding margins of sunspots are brighter than the average, and so are hotter;overall, more sunspots increase the Suns solar constant or brightness.Thus sun spots do have effect on the Earth’s climate because it varies the solar radiationoutput thus affecting the insolation reaching on the Earth’s surface.
Sunspots are temporary phenomena on the photosphere of the Sun that appear visibly asdark spots compared to surrounding regions. They correspond to concentrationsof magnetic field that inhibit convection and result in reduced surface temperaturecompared to the surrounding photosphere. Sunspots usually appear as pairs, with each spothaving the opposite magnetic polarity of the other.Sunspot populations quickly rise and more slowly fall on an irregular cycle of 11 years,although significant variations in the number of sunspots attending the 11-year period areknown over longer spans of time.Since sunspots are darker than the surrounding photosphere it might be expected thatmore sunspots would lead to less solar radiation and a decreased solar constant. However,the surrounding margins of sunspots are brighter than the average, and so are hotter;overall, more sunspots increase the Suns solar constant or brightness.Thus sun spots do have effect on the Earth’s climate because it varies the solar radiationoutput thus affecting the insolation reaching on the Earth’s surface.