Infrared energy is the energy of light between microwave radiation and Ultraviolet radiation
I've actually used the magnet test to determine if a gold necklace of mine was real or not. If the gold item aka the crown is attracted to a magnet, it is definitely not real gold.if it isn't then its real gold.
Answer:
4960000000 pm
Explanation:
4.96*1000000000= 4960000000