The wavelength of violet light in a spectrum is about 0.4 meters. which number best approximates this length as a power of 10
a. 4 x 10^-7
b. 4 x 10^-6
c. -4 x 10^7
d. 4 x 10^7

Option A is correct.

Step-by-step explanation:

The wavelength of violet light in a spectrum is about 0.0000004 meters.

Now, we have to express this wavelength best approximate as a power of 10.

Now, 0.0000004 can be written as

Therefore, 0.0000004 meters = meters

So, 0.0000004 meters = meters

Hence, option A gives the correct answer. ( Answer )

lol.

it's ok we all do this sometimes.

-aparri

what are you trying find out?

step-by-step explanation: