Question

state Stephan's law.​

Answer 1

Answer:

The Stefan law describes the power radiated from a black body in terms of its temperature. Specifically, it states that the total energy radiated per unit surface area of a black body across all ........❤❤❤

Answer 2

ʀᴇϙᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ✌️

• sᴛᴇғᴀɴ's ʟᴀᴡ

sᴛᴇғᴀɴ-ʙᴏʟᴛᴢᴍᴀɴɴ ʟᴀᴡ sᴛᴀᴛᴇs ᴛʜᴀᴛ "ᴛʜᴇ ᴛᴏᴛᴀʟ ʀᴀᴅɪᴀɴᴛ ʜᴇᴀᴛ ᴘᴏᴡᴇʀ ᴇᴍɪᴛᴛᴇᴅ ғʀᴏᴍ ᴀ sᴜʀғᴀᴄᴇ ɪs ᴘʀᴏᴘᴏʀᴛɪᴏɴᴀʟ ᴛᴏ ᴛʜᴇ ғᴏᴜʀᴛʜ ᴘᴏᴡᴇʀ ᴏғ ɪᴛs ᴀʙsᴏʟᴜᴛᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ."

• ᴀᴘᴘʟɪᴄᴀᴛɪᴏɴ ᴏғ sᴛᴇғᴀɴ's ʟᴀᴡ

ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛᴇᴀᴄʜ ᴀsᴛʀᴏɴᴏᴍʏ, ᴛʜᴇ sᴛᴇғᴀɴ-ʙᴏʟᴛᴢᴍᴀɴɴ ʟᴀᴡ ᴄᴀɴ ʙᴇ ᴀᴘᴘʟɪᴇᴅ ᴛᴏ ᴀ sᴛᴀʀ's sɪᴢᴇ ɪɴ ʀᴇʟᴀᴛɪᴏɴ ᴛᴏ ɪᴛs ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ʟᴜᴍɪɴᴏsɪᴛʏ.

ɪᴛ ᴄᴀɴ ᴀʟsᴏ ᴀᴘᴘʟʏ ᴛᴏ ᴀɴʏ ᴏʙᴊᴇᴄᴛ ᴇᴍɪᴛᴛɪɴɢ ᴀ ᴛʜᴇʀᴍᴀʟ sᴘᴇᴄᴛʀᴜᴍ, ɪɴᴄʟᴜᴅɪɴɢ ᴍᴇᴛᴀʟ ʙᴜʀɴᴇʀs ᴏɴ ᴇʟᴇᴄᴛʀɪᴄ sᴛᴏᴠᴇs ᴀɴᴅ ғɪʟᴀᴍᴇɴᴛs ɪɴ ʟɪɢʜᴛ ʙᴜʟʙs.

ᴛʜᴇ ʟᴀᴡ ɪs ᴜsᴇᴅ ᴛᴏ ᴄᴀʟᴄᴜʟᴀᴛᴇ ᴛʜᴇ ʀᴀᴅɪɪ ᴏғ sᴛᴀʀs.

• ᴅᴇʀɪᴠᴀᴛɪᴏɴ ᴏғ sᴛᴇғᴀɴ's ʟᴀᴡ

ᴛʜᴇ sᴛᴇғᴀɴ–ʙᴏʟᴛᴢᴍᴀɴɴ ʟᴀᴡ ɢɪᴠᴇs ᴛʜᴇ ᴘᴏᴡᴇʀ ᴇᴍɪᴛᴛᴇᴅ ᴘᴇʀ ᴜɴɪᴛ ᴀʀᴇᴀ ᴏғ ᴛʜᴇ ᴇᴍɪᴛᴛɪɴɢ ʙᴏᴅʏ, ᴛᴏ ᴅᴇʀɪᴠᴇ ᴛʜᴇ sᴛᴇғᴀɴ–ʙᴏʟᴛᴢᴍᴀɴɴ ʟᴀᴡ, ᴡᴇ ᴍᴜsᴛ ɪɴᴛᴇɢʀᴀᴛᴇ ᴅΩ = sɪɴ(θ) ᴅθ ᴅφ ᴏᴠᴇʀ ᴛʜᴇ ʜᴀʟғ-sᴘʜᴇʀᴇ ᴀɴᴅ ɪɴᴛᴇɢʀᴀᴛᴇ ν ғʀᴏᴍ 0 ᴛᴏ ∞.

ƭɦαɳҡเɳɠ ყσµ✋