Question

The angle between the incident ray and reflected ray was found 90° while carrying
out an experiment. What will be the value of angle of reflection?

Answer 1

$\huge\mathcal{\red {\underline {\overline {\mid {\pink {Answer}}\mid}}}}$

ᴡᴇ ᴋɴᴏᴡ, ғʀᴏᴍ ᴛʜᴇ ʟᴀᴡs ᴏғ ʀᴇғʟᴇᴄᴛɪᴏɴ, ᴛʜᴀᴛ

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⠀⠀∠ɪ=∠ʀ

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ɢɪᴠᴇɴ, ᴀɴɢʟᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ɪɴᴄɪᴅᴇɴᴛ ʀᴀʏ ᴀɴᴅ ᴛʜᴇ ʀᴇғʟᴇᴄᴛᴇᴅ ʀᴀʏ ɪs  

∠ɪ+∠ʀ=90∘

⇒∠ʀ+∠ʀ=90∘

⇒2∠ʀ=90∘

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⠀⇒ ∠ʀ=45∘

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Answer 2

$\huge\mathcal{\green {\underline {\overline {\mid {\blue {Answer}}\mid}}}}$

ᴡᴇ ᴋɴᴏᴡ, ғʀᴏᴍ ᴛʜᴇ ʟᴀᴡs ᴏғ ʀᴇғʟᴇᴄᴛɪᴏɴ, ᴛʜᴀᴛ

╭━━━━━━╮

⠀⠀∠ɪ=∠ʀ

╰━━━━━━╯

ɢɪᴠᴇɴ, ᴀɴɢʟᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ɪɴᴄɪᴅᴇɴᴛ ʀᴀʏ ᴀɴᴅ ᴛʜᴇ ʀᴇғʟᴇᴄᴛᴇᴅ ʀᴀʏ ɪs

∠ɪ+∠ʀ=90∘

⇒∠ʀ+∠ʀ=90∘

⇒2∠ʀ=90∘

╭━━━━━━━╮

⠀⇒ ∠ʀ=45∘

╰━━━━━━━╯