Select the best definition for wavelength. the rate at which electromagnetic waves oscillate the distance between two crests of an electromagnetic wave the height of an oscillating electromagnetic wave the oscillations of electric and magnetic fields Select the best definition for frequency. the rate at which electromagnetic waves oscillate the oscillations of electric and magnetic fields the distance between two crests of an electromagnetic wave the height of an oscillating electromagnetic wave

the answer is true.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

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