Question

what is meant by infrared rays​

Answer 1

Answer:

Infrared radiation (IR), or infrared light, is a type of radiant energy that's invisible to human eyes but that we can feel as heat. All objects in the universe emit some level of IR radiation, but two of the most obvious sources are the sun and fire.

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Answer 2

ɪɴғʀᴀʀᴇᴅ ʀᴀᴅɪᴀᴛɪᴏɴ (ɪʀ), ᴏʀ ɪɴғʀᴀʀᴇᴅ ʟɪɢʜᴛ, ɪs ᴀ ᴛʏᴘᴇ ᴏғ ʀᴀᴅɪᴀɴᴛ ᴇɴᴇʀɢʏ ᴛʜᴀᴛ's ɪɴᴠɪsɪʙʟᴇ ᴛᴏ ʜᴜᴍᴀɴ ᴇʏᴇs ʙᴜᴛ ᴛʜᴀᴛ ᴡᴇ ᴄᴀɴ ғᴇᴇʟ ᴀs ʜᴇᴀᴛ. ᴀʟʟ ᴏʙᴊᴇᴄᴛs ɪɴ ᴛʜᴇ ᴜɴɪᴠᴇʀsᴇ ᴇᴍɪᴛ sᴏᴍᴇ ʟᴇᴠᴇʟ ᴏғ ɪʀ ʀᴀᴅɪᴀᴛɪᴏɴ, ʙᴜᴛ ᴛᴡᴏ ᴏғ ᴛʜᴇ ᴍᴏsᴛ ᴏʙᴠɪᴏᴜs sᴏᴜʀᴄᴇs ᴀʀᴇ ᴛʜᴇ sᴜɴ ᴀɴᴅ ғɪʀᴇ.

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