3 years ago

PLEASE HELP it takes tsooo long! lol ima fail! please help! thanks!

Physics

2 answers:

sp2606 [1]3 years ago

7 0

B and C are the ones.

Natasha_Volkova [10]3 years ago

4 0

Answer:

A and c, hope i helped xx

Explanation:

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Given that,

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$1.47=\dfrac{3\times10^{8}}{v}$

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Put the value into the formula

$\lambda=\dfrac{650\times10^{-9}}{1.47}$

$\lambda=442\times10^{-9}\ m$

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