Question

The formula f equals c over lambda, where f = frequency, c = wave speed, and λ = wavelength, is used to calculate frequency. Solve this formula for c.
.

A. c = f − λ
B. c = fλ
C. c = f + λ
D. c equals f over lambda

Answer 1

Answer:

B. c = fλ

Step-by-step explanation:

The given equation is

$f=\frac{c}{\lambda}$

To solve for c you must multiply both sides of the equation by lambda.

$f=\frac{c}{\lambda}\\f\lambda=\frac{c}{\lambda}*\lambda \\f \lambda=c$

Answer 2

Answer:B

Step-by-step explanation:

F=C/λ by cross multiplying C=Fλ