Question

✾ Iғ ᴛʜᴇ ᴀɴɢʟᴇ ᴏғ ɪɴᴄɪᴅᴇɴᴄᴇ ᴀɴᴅ ᴀɴɢʟᴇ ᴏғ ᴇᴍᴇʀɢᴇɴᴄᴇ ᴏғ ᴀ ʟɪɢʜᴛ ʀᴀʏ ғᴀʟʟɪɴɢ ᴏɴ ᴀ ɢʟᴀꜱꜱ ꜱʟᴀʙ ᴀʀᴇ ɪ ᴀɴᴅ ᴇ ʀᴇꜱᴘᴇᴄᴛɪᴠᴇʟʏ , ᴘʀᴏᴠᴇ ᴛʜᴀᴛ, ɪ=ᴇ. ✾

♡ Tнαηк υн ♡​

Answer 1

Answer:

Explanation:

the sides of slab are parallel

also normals drawn at two locations will b equal.

so r= r

now

RI of glass wrt air=1/RI of air wrt glass

so

sin i/sinr=1/sinr/sine

sini= sine

i=e