Question

what is tweenkling start...? explanation​

Answer 1

Answer:

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The twinkling of a star is due to atmospheric refraction of starlight. The starlight, on entering the earth's atmosphere, undergoes refraction continuously before it reaches the earth. The atmospheric refraction occurs in a medium of gradually changing refractive index.

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$\bold \star\red{\underline{\boxed{Hope \: it \: helps \: you}}}\star$

$\bold \star\orange{\underline{\boxed{Pls \: follow \: kar \: do}}}\star$

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Answer 2

ᎪɳŚωεɾ

ᴛʜᴇ ᴛᴡɪɴᴋʟɪɴɢ ᴏғ ᴀ sᴛᴀʀ ɪs ᴅᴜᴇ ᴛᴏ ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ʀᴇғʀᴀᴄᴛɪᴏɴ ᴏғ sᴛᴀʀʟɪɢʜᴛ. ᴛʜᴇ sᴛᴀʀʟɪɢʜᴛ, ᴏɴ ᴇɴᴛᴇʀɪɴɢ ᴛʜᴇ ᴇᴀʀᴛʜ's ᴀᴛᴍᴏsᴘʜᴇʀᴇ, ᴜɴᴅᴇʀɢᴏᴇs ʀᴇғʀᴀᴄᴛɪᴏɴ ᴄᴏɴᴛɪɴᴜᴏᴜsʟʏ ʙᴇғᴏʀᴇ ɪᴛ ʀᴇᴀᴄʜᴇs ᴛʜᴇ ᴇᴀʀᴛʜ. sɪɴᴄᴇ ᴛʜᴇ sᴛᴀʀs ᴀʀᴇ ᴠᴇʀʏ ᴅɪsᴛᴀɴᴛ, ᴛʜᴇʏ ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇ ᴘᴏɪɴᴛ-sɪᴢᴇᴅ sᴏᴜʀᴄᴇs ᴏғ ʟɪɢʜᴛ.