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Which answer is right? thanks if u help me! :)
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1 vote
Which answer is right? thanks if u help me! :)

Which answer is right? thanks if u help me! :)-example-1
User Roudan
by
5.2k points

2 Answers

5 votes

Answer: I believe the answer is 7.5 x 10^(14)Hz or 7.5E14Hz

Explanation: the formula for frequency is speed of the wave divided by the wavelength

f= c/wavelength

f- frequency

c-speed

(3 x 10^(8)) x (400 x 10^(-9))= 750,000,000,000,000 or 7.5E14 or 7.5 x10^(14)

User Ychiucco
by
5.0k points
6 votes

Answer:7.5 x 10* 14

Step-by-step explanation:

User Teppic
by
5.1k points
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