How to find frequency of wavelength please help

[From: ] [author: ] [Date: 11-12-06] [Hit: ]

Wavelength= 6.7x10-5cm. Use dimensional analysis to go from unit to unit

Also if you need: c= 3.00 x 10^10cm/sec

c=fλ

f = c/λ
= (3.0x10^10)/(6.7X10^-5)
= 4.5x10^14Hz

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