Question

A Spherical lens produces an image of magnification -1 on a screen placed at a distance of 50 cm from it. a) Identify the lens. b) Find the object distance. c) What is the focal length of this lens?

Answer 1

Answer:

ᴛʏᴘᴇ ᴏғ ᴍᴇʀᴄʜᴀɴᴅɪsᴇ sᴏʟᴅ; ᴀssᴏʀᴛᴍᴇɴᴛ ʟᴏᴄᴀʟɪsᴀᴛɪᴏɴ; ᴄᴜsᴛᴏᴍᴇʀ sᴇʀᴠɪᴄᴇ; ᴀɴᴅ. ᴘʀɪᴄɪɴɢ.

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ᴍᴇʀᴄʜᴀɴᴅɪsᴇ ᴛʏᴘᴇs:

ᴄᴏɴᴠᴇɴɪᴇɴᴄᴇ ɢᴏᴏᴅs. ᴛʜᴇʀᴇ ᴀʀᴇ ᴘʀᴏᴅᴜᴄᴛs ɪɴ ᴏᴜʀ ʟɪᴠᴇs ᴡʜɪᴄʜ ᴡᴇ sɪᴍᴘʟʏ ᴄᴀɴɴᴏᴛ ᴅᴏ ᴡɪᴛʜᴏᴜᴛ. ...

ɪᴍᴘᴜʟsᴇ ɢᴏᴏᴅs. ...

sʜᴏᴘᴘɪɴɢ ᴘʀᴏᴅᴜᴄᴛs. ...

sᴘᴇᴄɪᴀʟɪᴛʏ ɢᴏᴏᴅs.

Answer 2

Answer:

Theory: For a spherical mirror or thin lens the focal length (f) is given by (do = object distance, di = image distance):

hope it is helpful