Answer:
Length will be 0.491 nm
Explanation:
We have given wavelength of the photon 
Plank's constant 
We know that energy of the photon is given by

We know that energy of photon is also given by



Answer:
Measurement is important so we could measure certain things right. By taking measurements we can have a knowledge of sizes, lengths, widths etc.
Explanation:
Answer:Hope this helped.
Explanation:
Because each color is refracted differently, each bends at a different angle, resulting in a fanning out and separation of white light into the colors of the spectrum. Water droplets in the air can act in a manner similar to that of a prism, separating the colors of sunlight to produce a spectrum known as a rainbow.────(♥)(♥)(♥)────(♥)(♥)(♥) __ ɪƒ ƴσυ'ʀє αʟσηє,
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