Question

explain formation of rainbow ​

Answer 1

Answer:

Formation of Rainbow :

(a) The beautiful phenomenon of the rainbow is a combination of three different phenomena - dispersion, refraction and reflection of light.

(b) The rainbow appears in the sky after a rain shower.

(c) When light rays from the sun enter the water droplets that act like small prisms, they refract and disperse the incident sunlight.

(d) This light is then reflected internally, inside the droplet and is finally refracted again.

(e) Due to the collective effect of all these phenomena, the seven coloured rainbow 'VIBGYOR' - violet, indigo, blue, green, yellow, orange, red can be seen.

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Answer 2

$\Huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}}{\color{pink}{♡}}}}}$

➛ᴀ ʀᴀɪɴʙᴏᴡ ɪs ᴄᴀᴜsᴇᴅ ʙʏ sᴜɴʟɪɢʜᴛ ᴀɴᴅ ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ᴄᴏɴᴅɪᴛɪᴏɴs. ʟɪɢʜᴛ ᴇɴᴛᴇʀs ᴀ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ, sʟᴏᴡɪɴɢ ᴅᴏᴡɴ ᴀɴᴅ ʙᴇɴᴅɪɴɢ ᴀs ɪᴛ ɢᴏᴇs ғʀᴏᴍ ᴀɪʀ ᴛᴏ ᴅᴇɴsᴇʀ ᴡᴀᴛᴇʀ. ᴛʜᴇ ʟɪɢʜᴛ ʀᴇғʟᴇᴄᴛs ᴏғғ ᴛʜᴇ ɪɴsɪᴅᴇ ᴏғ ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, sᴇᴘᴀʀᴀᴛɪɴɢ ɪɴᴛᴏ ɪᴛs ᴄᴏᴍᴘᴏɴᴇɴᴛ ᴡᴀᴠᴇʟᴇɴɢᴛʜs--ᴏʀ ᴄᴏʟᴏʀs. ᴡʜᴇɴ ʟɪɢʜᴛ ᴇxɪᴛs ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, ɪᴛ ᴍᴀᴋᴇs ᴀ ʀᴀɪɴʙᴏᴡ

ᴡʜᴇɴ ᴄᴀɴ ʏᴏᴜ sᴇᴇ ᴀ ʀᴀɪɴʙᴏᴡ?

➛ᴀ ʀᴀɪɴʙᴏᴡ ʀᴇǫᴜɪʀᴇs ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛs ᴛᴏ ʙᴇ ғʟᴏᴀᴛɪɴɢ ɪɴ ᴛʜᴇ ᴀɪʀ. ᴛʜᴀᴛ’s ᴡʜʏ ᴡᴇ sᴇᴇ ᴛʜᴇᴍ ʀɪɢʜᴛ ᴀғᴛᴇʀ ɪᴛ ʀᴀɪɴs. ᴛʜᴇ sᴜɴ ᴍᴜsᴛ ʙᴇ ʙᴇʜɪɴᴅ ʏᴏᴜ ᴀɴᴅ ᴛʜᴇ ᴄʟᴏᴜᴅs ᴄʟᴇᴀʀᴇᴅ ᴀᴡᴀʏ ғʀᴏᴍ ᴛʜᴇ sᴜɴ ғᴏʀ ᴛʜᴇ ʀᴀɪɴʙᴏᴡ ᴛᴏ ᴀᴘᴘᴇᴀʀ.

ᴡʜʏ ɪs ᴀ ʀᴀɪɴʙᴏᴡ ᴀ ʙᴏᴡ—ᴏʀ ᴀʀᴄ?

➛ᴀ ғᴜʟʟ ʀᴀɪɴʙᴏᴡ ɪs ᴀᴄᴛᴜᴀʟʟʏ ᴀ ᴄᴏᴍᴘʟᴇᴛᴇ ᴄɪʀᴄʟᴇ, ʙᴜᴛ ғʀᴏᴍ ᴛʜᴇ ɢʀᴏᴜɴᴅ ᴡᴇ sᴇᴇ ᴏɴʟʏ ᴘᴀʀᴛ ᴏғ ɪᴛ. ғʀᴏᴍ ᴀɴ ᴀɪʀᴘʟᴀɴᴇ, ɪɴ ᴛʜᴇ ʀɪɢʜᴛ ᴄᴏɴᴅɪᴛɪᴏɴs, ᴏɴᴇ ᴄᴀɴ sᴇᴇ ᴀɴ ᴇɴᴛɪʀᴇ ᴄɪʀᴄᴜʟᴀʀ ʀᴀɪɴʙᴏᴡ.

ᴡʜᴀᴛ ʜᴀᴘᴘᴇɴs ɪɴ ᴛʜᴇ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛs?

➛ᴛʜᴇ sᴜɴʟɪɢʜᴛ sʜɪɴᴇs ᴏɴ ᴀ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ. ᴀs ᴛʜᴇ ʟɪɢʜᴛ ᴘᴀssᴇs ɪɴᴛᴏ ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, ᴛʜᴇ ʟɪɢʜᴛ ʙᴇɴᴅs, ᴏʀ ʀᴇғʀᴀᴄᴛs, ᴀ ʟɪᴛᴛʟᴇ, ʙᴇᴄᴀᴜsᴇ ʟɪɢʜᴛ ᴛʀᴀᴠᴇʟs sʟᴏᴡᴇʀ ɪɴ ᴡᴀᴛᴇʀ ᴛʜᴀɴ ɪɴ ᴀɪʀ (ʙᴇᴄᴀᴜsᴇ ᴡᴀᴛᴇʀ ɪs ᴅᴇɴsᴇʀ). ᴛʜᴇɴ ᴛʜᴇ ʟɪɢʜᴛ ʙᴏᴜɴᴄᴇs ᴏғғ ᴛʜᴇ ʙᴀᴄᴋ ᴏғ ᴛʜᴇ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ ᴀɴᴅ ɢᴏᴇs ʙᴀᴄᴋ ᴛʜᴇ ᴡᴀʏ ɪᴛ ᴄᴀᴍᴇ, ʙᴇɴᴅɪɴɢ ᴀɢᴀɪɴ ᴀs ɪᴛ sᴘᴇᴇᴅs ᴜᴘ ᴡʜᴇɴ ɪᴛ ᴇxɪᴛs ᴛʜᴇ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ.

ʟɪɢʜᴛ ᴇɴᴛᴇʀs ᴀ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ, ʙᴇɴᴅɪɴɢ ᴀs ɪᴛ sʟᴏᴡs ᴅᴏᴡɴ ᴀ ʙɪᴛ ɢᴏɪɴɢ ғʀᴏᴍ ᴀɪʀ ᴛᴏ ᴅᴇɴsᴇʀ ᴡᴀᴛᴇʀ. ᴛʜᴇ ʟɪɢʜᴛ ʀᴇғʟᴇᴄᴛs ᴏғғ ᴛʜᴇ ɪɴsɪᴅᴇ ᴏғ ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, sᴇᴘᴀʀᴀᴛɪɴɢ ɪɴᴛᴏ ɪᴛs ᴄᴏᴍᴘᴏɴᴇɴᴛ ᴡᴀᴠᴇʟᴇɴɢᴛʜs—ᴏʀ ᴄᴏʟᴏʀs. ᴡʜᴇɴ ɪᴛ ᴇxɪᴛs ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, ɪᴛ ᴍᴀᴋᴇs ᴀ ʀᴀɪɴʙᴏᴡ.

ᴡʜᴀᴛ ᴍᴀᴋᴇs ᴀ ᴅᴏᴜʙʟᴇ ʀᴀɪɴʙᴏᴡ?

➛sᴏᴍᴇᴛɪᴍᴇs ʏᴏᴜ ᴄᴀɴ sᴇᴇ ᴀɴᴏᴛʜᴇʀ, ғᴀɪɴᴛᴇʀ sᴇᴄᴏɴᴅᴀʀʏ ʀᴀɪɴʙᴏᴡ ᴀʙᴏᴠᴇ ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʀᴀɪɴʙᴏᴡ. ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʀᴀɪɴʙᴏᴡ ɪs ᴄᴀᴜsᴇᴅ ғʀᴏᴍ ᴏɴᴇ ʀᴇғʟᴇᴄᴛɪᴏɴ ɪɴsɪᴅᴇ ᴛʜᴇ ᴡᴀᴛᴇʀ ᴅʀᴏᴘʟᴇᴛ. ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ ʀᴀɪɴʙᴏᴡ ɪs ᴄᴀᴜsᴇᴅ ʙʏ ᴀ sᴇᴄᴏɴᴅ ʀᴇғʟᴇᴄᴛɪᴏɴ ɪɴsɪᴅᴇ ᴛʜᴇ ᴅʀᴏᴘʟᴇᴛ, ᴀɴᴅ ᴛʜɪs “ʀᴇ-ʀᴇғʟᴇᴄᴛᴇᴅ” ʟɪɢʜᴛ ᴇxɪᴛs ᴛʜᴇ ᴅʀᴏᴘ ᴀᴛ ᴀ ᴅɪғғᴇʀᴇɴᴛ ᴀɴɢʟᴇ (50° ɪɴsᴛᴇᴀᴅ ᴏғ 42° ғᴏʀ ᴛʜᴇ ʀᴇᴅ ᴘʀɪᴍᴀʀʏ ʙᴏᴡ). ᴛʜɪs ɪs ᴡʜʏ ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ ʀᴀɪɴʙᴏᴡ ᴀᴘᴘᴇᴀʀs ᴀʙᴏᴠᴇ ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʀᴀɪɴʙᴏᴡ. ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ ʀᴀɪɴʙᴏᴡ ᴡɪʟʟ ʜᴀᴠᴇ ᴛʜᴇ ᴏʀᴅᴇʀ ᴏғ ᴛʜᴇ ᴄᴏʟᴏʀs ʀᴇᴠᴇʀsᴇᴅ, ᴛᴏᴏ, ᴡɪᴛʜ ʀᴇᴅ ᴏɴ ᴛʜᴇ ʙᴏᴛᴛᴏᴍ ᴀɴᴅ ᴠɪᴏʟᴇᴛ ᴏɴ ᴛʜᴇ ᴛᴏᴘ.

$\tt\red{Thaɳk \: you♡}$