Question

What is Hooke's law? What is
meant by elastic limit?​

Answer 1

The limit of proportionality is the is the point beyond which Hooke's law is no longer true when stretching a material. The elastic limit is the point beyond which the material you are stretching becomes permanently stretched so that the material does not return to its original length when the force is removed.

Answer 2

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ʜᴏᴏᴋᴇ's ʟᴀᴡ ::-

➜ʜᴏᴏᴋᴇ's ʟᴀᴡ ɪs ᴀ ʟᴀᴡ ᴏғ ᴘʜʏsɪᴄs ᴛʜᴀᴛ sᴛᴀᴛᴇs ᴛʜᴀᴛ ᴛʜᴇ ғᴏʀᴄᴇ ɴᴇᴇᴅᴇᴅ ᴛᴏ ᴇxᴛᴇɴᴅ ᴏʀ ᴄᴏᴍᴘʀᴇss ᴀ sᴘʀɪɴɢ ʙʏ sᴏᴍᴇ ᴅɪsᴛᴀɴᴄᴇ (x) sᴄᴀʟᴇs ʟɪɴᴇᴀʀʟʏ ᴡɪᴛʜ ʀᴇsᴘᴇᴄᴛ ᴛᴏ ᴛʜᴀᴛ ᴅɪsᴛᴀɴᴄᴇ—ᴛʜᴀᴛ ɪs, ғₛ = ᴋx, ᴡʜᴇʀᴇ ᴋ ɪs ᴀ ᴄᴏɴsᴛᴀɴᴛ ғᴀᴄᴛᴏʀ ᴄʜᴀʀᴀᴄᴛᴇʀɪsᴛɪᴄ ᴏғ ᴛʜᴇ sᴘʀɪɴɢ, ᴀɴᴅ x ɪs sᴍᴀʟʟ ᴄᴏᴍᴘᴀʀᴇᴅ ᴛᴏ ᴛʜᴇ ᴛᴏᴛᴀʟ ᴘᴏssɪʙʟᴇ ᴅᴇғᴏʀᴍᴀᴛɪᴏɴ ᴏғ ᴛʜᴇ sᴘʀɪɴɢ.

ᴇʟᴀsᴛɪᴄ ʟɪᴍɪᴛ ::-

➜ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ᴇxᴛᴇɴᴛ ᴛᴏ ᴡʜɪᴄʜ ᴀ sᴏʟɪᴅ ᴍᴀʏ ʙᴇ sᴛʀᴇᴛᴄʜᴇᴅ ᴡɪᴛʜᴏᴜᴛ ᴘᴇʀᴍᴀɴᴇɴᴛ ᴀʟᴛᴇʀᴀᴛɪᴏɴ ᴏғ sɪᴢᴇ ᴏʀ sʜᴀᴘᴇ.