You don't need to do any calculations, you are already given that n=1.5
n is index of refraction. it's 1.5
Answer:
e. all of these
Explanation:
The fatigue strength is improved by then high alloy steels , high yield steels , high hardened steel , high ultimate steel .
Due to the formation of the improved materials in alloy steels will increase the fatigue strength . Similarly for a high yield steels and hardened steels these cycles to failure will improve .
<span>D. Atoms of all elements contain protons, but the number of protons is different for every element.
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(aq)
This means it’s aqueous (dissolved in water)
