The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
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Answered by
9
focal length=radius of curvature/2
=20/2
=10cm
=20/2
=10cm
FRabadakhushi:
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Answered by
11
ʜᴇʏᴀ ᴍᴀᴛᴇ!!
ʜᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ ⏬ ⏬
ʀᴀᴅɪᴜs ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ, ʀ= 20 ᴄᴍ ʀᴀᴅɪᴜs ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ ᴏғ ᴀ sᴘʜᴇʀɪᴄᴀʟ ᴍɪʀʀᴏʀ = 2 — ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ (ғ) ʀ= 2ғ ғ= ʀ/2 = 20 / 2 = 10 ʜᴇɴᴄᴇ, ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴏғ ᴛʜᴇ ɢɪᴠᴇɴ sᴘʜᴇʀɪᴄᴀʟ ᴍɪʀʀᴏʀ ɪs 10 ᴄᴍ
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