Question

what is the difference between concave and convex lens?​

Answer 1

τнє ∂iƒƒєrєทcє вєτωєєท cσทcαvє αท∂ cσทvєx ℓєทs αrє:

ᴀ ᴄᴏɴᴄᴀᴠᴇ ʟᴇɴs ɪs ᴀ ᴛʏᴘᴇ ᴏғ ʟᴇɴs ᴛʜᴀᴛ ᴅɪᴠᴇʀɢᴇs ᴀ sᴛʀᴀɪɢʜᴛ ʟɪɢʜᴛ ʙᴇᴀᴍ ᴄᴏᴍɪɴɢ ғʀᴏᴍ ᴛʜᴇ sᴏᴜʀᴄᴇ ᴛᴏ ᴀ ᴅɪᴍɪɴɪsʜᴇᴅ, ᴜᴘʀɪɢʜᴛ, ᴠɪʀᴛᴜᴀʟ ɪᴍᴀɢᴇ ɪs ᴋɴᴏᴡɴ ᴀs ᴀᴄᴏɴᴄᴀᴠᴇ ʟᴇɴs. ɪᴛ ᴄᴀɴ ғᴏʀᴍ ʙᴏᴛʜ ʀᴇᴀʟ ᴀɴᴅ ᴠɪʀᴛᴜᴀʟ ɪᴍᴀɢᴇs. ᴄᴏɴᴄᴀᴠᴇ ʟᴇɴsᴇs ʜᴀᴠᴇ ᴀᴛ ʟᴇᴀsᴛ ᴏɴᴇ sᴜʀғᴀᴄᴇ ᴄᴜʀᴠᴇᴅ ɪɴsɪᴅᴇ.

ᴀɴ ᴏᴘᴛɪᴄᴀʟ ʟᴇɴs ɪs ɢᴇɴᴇʀᴀʟʟʏ ᴍᴀᴅᴇ ᴜᴘ ᴏғ ᴛᴡᴏ sᴘʜᴇʀɪᴄᴀʟ sᴜʀғᴀᴄᴇs. ɪғ ᴛʜᴏsᴇ sᴜʀғᴀᴄᴇs ᴀʀᴇ ʙᴇɴᴛ ᴏᴜᴛᴡᴀʀᴅs, ᴛʜᴇʟᴇɴs ɪs ᴄᴀʟʟᴇᴅ ᴀ ʙɪᴄᴏɴᴠᴇx ʟᴇɴs ᴏʀ sɪᴍᴘʟʏ ᴄᴏɴᴠᴇx ʟᴇɴs. ᴛʜᴇsᴇ ᴛʏᴘᴇs ᴏғ ʟᴇɴsᴇs ᴄᴀɴ ᴄᴏɴᴠᴇʀɢᴇ ᴀ ʙᴇᴀᴍ ᴏғ ʟɪɢʜᴛ ᴄᴏᴍɪɴɢ ғʀᴏᴍ ᴏᴜᴛsɪᴅᴇ ᴀɴᴅ ғᴏᴄᴜs ɪᴛ ᴛᴏ ᴀ ᴘᴏɪɴᴛ ᴏɴ ᴛʜᴇ ᴏᴛʜᴇʀ sɪᴅᴇ.

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