Question

how accurate are mechanical and electronic stopwatches​

Answer 1

Answer:

Normally, humans will take about 180–200 milliseconds to detect and respond to visual stimulus. However, in most situations where a stopwatch is used, there are indicators that the timing event is about to happen, and the manual action of starting/stopping the timer can be much more accurate.

Answer 2

Answer:

ᴅɪɢɪᴛᴀʟ ᴇʟᴇᴄᴛʀᴏɴɪᴄ sᴛᴏᴘᴡᴀᴛᴄʜᴇs ᴀʀᴇ ᴀᴠᴀɪʟᴀʙʟᴇ ᴡʜɪᴄʜ, ᴅᴜᴇ ᴛᴏ ᴛʜᴇɪʀ ᴄʀʏsᴛᴀʟ ᴏsᴄɪʟʟᴀᴛᴏʀ ᴛɪᴍɪɴɢ ᴇʟᴇᴍᴇɴᴛ, ᴀʀᴇ ᴍᴜᴄʜ ᴍᴏʀᴇ ᴀᴄᴄᴜʀᴀᴛᴇ ᴛʜᴀɴ ᴍᴇᴄʜᴀɴɪᴄᴀʟ ᴛɪᴍᴇᴘɪᴇᴄᴇs. ... sᴛᴏᴘᴡᴀᴛᴄʜᴇs ᴛʜᴀᴛ ᴄᴏᴜɴᴛ ʙʏ 1/100 ᴏғ ᴀ sᴇᴄᴏɴᴅ ᴀʀᴇ ᴄᴏᴍᴍᴏɴʟʏ ᴍɪsᴛᴀᴋᴇɴ ᴀs ᴄᴏᴜɴᴛɪɴɢ ᴍɪʟʟɪsᴇᴄᴏɴᴅs, ʀᴀᴛʜᴇʀ ᴛʜᴀɴ ᴄᴇɴᴛɪsᴇᴄᴏɴᴅs.