Question

state 2 difference between the convex lens and concave lens .

class 7

Answer 1

• ᴀ ᴄᴏɴᴠᴇx ʟᴇɴs ᴏʀ ᴄᴏɴᴠᴇʀɢɪɴɢ ʟᴇɴs ғᴏᴄᴜsᴇs ᴛʜᴇ ʟɪɢʜᴛ ʀᴀʏs ᴛᴏ ᴀ sᴘᴇᴄɪғɪᴄ ᴘᴏɪɴᴛ ᴡʜᴇʀᴇᴀs ᴀ ᴄᴏɴᴄᴀᴠᴇ ʟᴇɴs ᴏʀ ᴅɪᴠᴇʀɢɪɴɢ ʟᴇɴs ᴅɪᴠᴇʀɢᴇs ᴛʜᴇ ʟɪɢʜᴛ ʀᴀʏs. ᴀ ʟᴇɴs ɪs ᴀ ᴛʀᴀɴsᴘᴀʀᴇɴᴛ ᴍᴀᴛᴇʀɪᴀʟ (ᴇɪᴛʜᴇʀ ᴄᴜʀᴠᴇᴅ ᴏʀ ғʟᴀᴛ sᴜʀғᴀᴄᴇ) ʙᴀsᴇᴅ ᴏɴ ᴛʜᴇ ᴘʀɪɴᴄɪᴘʟᴇs ᴏғ ʀᴇғʀᴀᴄᴛɪᴏɴ.

Answer 2

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A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction.

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