Question

Which statement describes absolute and apparent brightness?

Answer 1

Aʙsᴏʟᴜᴛᴇ ʙʀɪɢʜᴛɴᴇss ᴅᴇᴘᴇɴᴅs ᴏɴ ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ ғʀᴏᴍ ᴛʜᴇ sᴛᴀʀ ᴛᴏ ᴛʜᴇ ᴏʙsᴇʀᴠᴇʀ, ᴡʜᴇʀᴇᴀs ᴀᴘᴘᴀʀᴇɴᴛ ʙʀɪɢʜᴛɴᴇss ɪs ᴀʟᴡᴀʏs ᴛʜᴇ sᴀᴍᴇ. Aʙsᴏʟᴜᴛᴇ ʙʀɪɢʜᴛɴᴇss ɪs ᴛʜᴇ ᴀᴄᴛᴜᴀʟ ᴀᴍᴏᴜɴᴛ ᴏғ ʟɪɢʜᴛ ᴘʀᴏᴅᴜᴄᴇᴅ ʙʏ ᴛʜᴇ sᴛᴀʀ, ᴡʜᴇʀᴇᴀs ᴀᴘᴘᴀʀᴇɴᴛ ʙʀɪɢʜᴛɴᴇss ᴄʜᴀɴɢᴇs ᴡɪᴛʜ ᴅɪsᴛᴀɴᴄᴇ ғʀᴏᴍ ᴛʜᴇ ᴏʙsᴇʀᴠᴇʀ.

Hᴏᴘᴇ ɪᴛ ʜᴇʟᴘs...... ❤❤

Answer 2

$\huge\mathcal\red{Answer:-}$

Absolute brightness depends on the distance from the star to the observer, whereas apparent brightness is always the same. Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer.