Damnnnn🔥🔥🔥🔥🔥

This one is correct 😂😂😂

I am an experiment that was performed towards the end of the nineteenth century.
I was billed to prove the existence of something that is now known not to exist.
Such was my success that a new approach to physics emerged from my results.
I am named for the two scientists who first performed me.
I am just an experiment that saw the end of the luminiferous ether and provided a nail for its coffin.
Answer: Michelson-Morley experiment

That's crazy 😂😂😂

Next one😊

Should it be our last riddle ??😔😔😔

I am a law in physics.

Yesss😂😂😂😂

Answer ehh

All❌

I thought you were Ai😂😂😂

All❌

I am named for the two scientists who discovered me.

Keep on going 😂😂😂

All❌

I specify a physical property of solids.

All ❌

I embody the idea that a mole of an elemental substance contains the same number of atoms as a mole of any other elemental substance.

Sharp ✅

I am a law in physics.
I am named for the two scientists who discovered me.
I specify a physical property of solids.
I embody the idea that a mole of an elemental substance contains the same number of atoms as a mole of any other elemental substance.
I am the law that states that the molar specific heat capacity of an ideal monoatomic solid equals three times the molar ideal gas constant.
Answer: Dulong-Petit law