Question

What is the frequency of a 556 nm photon? Answer in units of Hz.

Answer 1

Answer:

see

Explanation:

wavelength

(

λ

)

times frequency

(

ν

)

equals the speed of light

(

c

)

, which is

3.00

×

10

8

m/s

to three significant figures.

c

=

λ

⋅

ν

ν

=

c

λ

Frequency is measured in Hertz (Hz), which is

/s

or

s

−

1

.

Convert

560 nm

to meters since the unit for the speed of light is

m/s

.

1 nm

=

1

×

10

−

9

m

560

nm

×

1

×

10

−

9

m

1

nm

=

5.6

×

10

−

7

m

ν

=

c

λ

ν

=

3.00

×

10

8

.

m/s

5.6

×

10

−

7

m

=

5.5

×

10

14

s

−

1

=

5.4

×

10

14

Hz