Question

determination of plancks constant do experiment


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Answer 1

Experimental determination of Planck's constant h = 6.626×10−34J· s is performed using Light Emitting Diodes (LEDs). Spectropho- tometry and basic circuit analysis techniques are employed to obtain empirical data with respect to the energy of the emitted photons of light and thus used to calculated Planck's constant.

Answer 2

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• ᴇxᴘᴇʀɪᴍᴇɴᴛᴀʟ ᴅᴇᴛᴇʀᴍɪɴᴀᴛɪᴏɴ ᴏғ ᴘʟᴀɴᴄᴋ's ᴄᴏɴsᴛᴀɴᴛ ʜ = 6.626×10−34ᴊ· s ɪs ᴘᴇʀғᴏʀᴍᴇᴅ ᴜsɪɴɢ ʟɪɢʜᴛ ᴇᴍɪᴛᴛɪɴɢ ᴅɪᴏᴅᴇs (ʟᴇᴅs).
• sᴘᴇᴄᴛʀᴏᴘʜᴏ- ᴛᴏᴍᴇᴛʀʏ ᴀɴᴅ ʙᴀsɪᴄ ᴄɪʀᴄᴜɪᴛ ᴀɴᴀʟʏsɪs ᴛᴇᴄʜɴɪǫᴜᴇs ᴀʀᴇ ᴇᴍᴘʟᴏʏᴇᴅ ᴛᴏ ᴏʙᴛᴀɪɴ ᴇᴍᴘɪʀɪᴄᴀʟ ᴅᴀᴛᴀ ᴡɪᴛʜ ʀᴇsᴘᴇᴄᴛ ᴛᴏ ᴛʜᴇ ᴇɴᴇʀɢʏ ᴏғ ᴛʜᴇ ᴇᴍɪᴛᴛᴇᴅ ᴘʜᴏᴛᴏɴs ᴏғ ʟɪɢʜᴛ ᴀɴᴅ ᴛʜᴜs ᴜsᴇᴅ ᴛᴏ ᴄᴀʟᴄᴜʟᴀᴛᴇᴅᴘʟᴀɴᴄᴋ's ᴄᴏɴsᴛᴀɴᴛ.