Question

Explain solar eclipse:-
A) Occurs on new moon day
B) The sun, moon and the earth are on same place and on one line
C) Duration 440 seconds
D) all of the above

Answer 1

Hint:There are fairly numerous solar eclipses, about 2 to 4 a year but the area protected by totality on the ground is only about 50 miles across. A total eclipse occurs in any given location on Earth only once every hundred years or so, although they can occur as little as a few years apart for selected locations.

Complete answer:
When a portion of the Earth is shrouded in a shadow cast by the Moon, which completely or partially blocks sunlight, a solar eclipse happens. When the Sun, Moon and Earth are aligned, this happens. A new moon (syzygy) meaning that the Moon is nearest to the ecliptic plane corresponds with this alignment.
In the new moon period, as the moon moves between the sun and the Earth, a solar eclipse occurs. At the opposite moon point, when the Earth, sun and moon align in space, with Earth between the sun and moon, a lunar eclipse.
7 minutes and 32 seconds is the longest possible length of a total solar eclipse. On 15 January 2010, with a length of 11 minutes and 7.8 seconds, the longest annular solar eclipse of the 21st century took place. Twelve minutes and 29 seconds is the maximum practicable lengthwise occurs at full moon.

Hence the correct answer is option D.

Note:When the New Moon comes between the Sun and the Earth and casts the darkest portion of its shadow, the umbra, on the Earth, total solar eclipses occur. A full solar eclipse is almost as dark as night, known as totality. The Moon covers the whole disk of the Sun during a complete eclipse of the Sun.
Rare occurrences are absolute solar eclipses. While they occur on average every 18 months anywhere on Earth, it is estimated that they recur only once every 360 to 410 years on average, at any given location.