Question

when copper plate is rubbed with sandpaper it becomes shiny- give reason... ​

Answer 1

Answer:

Explanation: The sandpaper creates more friction between the metal sheet and it as compared to the plain paper. Therefore, the sandpaper makes the sheet shinier by removing the top layer of the metal sheet.

Answer 2

• ᴛʜᴇ sᴀɴᴅᴘᴀᴘᴇʀ ᴄʀᴇᴀᴛᴇs ᴍᴏʀᴇ ғʀɪᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ᴍᴇᴛᴀʟ sʜᴇᴇᴛ ᴀɴᴅ ɪᴛ ᴀs ᴄᴏᴍᴘᴀʀᴇᴅ ᴛᴏ ᴛʜᴇ ᴘʟᴀɪɴ ᴘᴀᴘᴇʀ. ᴛʜᴇʀᴇғᴏʀᴇ, ᴛʜᴇ sᴀɴᴅᴘᴀᴘᴇʀ ᴍᴀᴋᴇs ᴛʜᴇ sʜᴇᴇᴛ sʜɪɴɪᴇʀ ʙʏ ʀᴇᴍᴏᴠɪɴɢ ᴛʜᴇ ᴛᴏᴘ ʟᴀʏᴇʀ ᴏғ ᴛʜᴇ ᴍᴇᴛᴀʟ sʜᴇᴇᴛ.♡