Question

    When does lunar eclipse

    occur?
    A Sun is between the Earth and the moon Correct Answer Incorrect Answer
    B Earth is between the sun and the moon Correct Answer Incorrect Answer
    C Moon is between the Earth and the sun Correct Answer Incorrect Answer
    D Earth is at right angle to the direction of the sun and the moon. Correct Answer Incorrect Answer

    Solution

    A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the sun, Earth, and moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can occur only the night of a full moon. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes.

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