The Sun is the central member of the Solar System. The Sun completes the revolution of the center of the galaxy in crores of years, which is called the Cosmic Year. The Sun, the central member of the Solar System. The speed of sunlight is about 3 lakh kilometers per second. It takes about 8 minutes for sunlight to reach the Earth. The central part of the Sun's internal structure is called the Core while the outer part of the outer structure is called the Corona, which is visible at the time of the solar eclipse. This emits X-Ray. The photosphere is the visible part of the sun in normal time. It is the closest star to the Earth. So take this quiz and know more about the sun.
1. What is the age of the Sun?
A. 4.4 billion year
B. 6.6 billion year
C. 4.6 billion year
D. 4.3 billion year
2. What is the diameter of the Sun?
A. 1392000 km
B. 1395000 km
C. 1352000 km
D. 1313130 km
3. Which is the largest satellite of the solar system?
A. Titan
B. Moon
C. Ganymede
D. All of above
4. Small spots appear on the sun surface these are called....
A. Solar stigmas
B. Solar wind
C. Solar storm
D. Non of these
5. The Sun is a ________ type main sequence star.
A. P- type
B. G- type
C. S- type
D. All type
6. What percent of the Sun's energy produced comes from the CNO cycle?
A. Only 0.08%
B. Only 1.8%
C. Only 0.8%
D. Only 0.18%
7. What is the meaning of the CNO cycle?
A. Calcium-Nitrate -Oxygen
B. Carbon-Nitrogen-Oxygen
C. Copper-Nitrogen-Oxygen
D. None of these
8. The first satellite designed to observe the Sun was NASA's _________.
A. Helios
B. Pioneer 5
C. Space shuttle
D. All of above
9. Japan's Yonkoh (solar beam) satellite observed solar flares at X-ray wavelength. When was it launched?
A. In 1990
B. In 1999
C. In 1992
D. In 1991
10. Which is the latest spacecraft sent by NASA to find out the secret of Sun's corona and the solar wind?
A. Eugene Newman Parker
B. Solar probe power
C. Parker Solar Probe
D. None of these
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