SELECT * FROM question_mgmt as q WHERE id=3784 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=262 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science The Human Eye and the Colourful World explain why the planets do not twinkle

Question:

Explain why the planets do not twinkle.

Answer:

As in the stars, they twinkles due the apparent position (which is not a fixed position) cause the light travels from the stars is refracted through the atmosphere. Planets do not twinkle because they are very much closer to the earth in the comparison of stars and appear large to the human eyes. Thus, the planet can be seen as extended sources. When the light ray come to our eyes from all the individual extended sources are constant. And there is no shifting occurs, so planets do not seem to be twinkle.


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