Question

Visible blue light has a wavelength of about 0.0000475 centimeters.

What is this measurement written in scientific notation?






















4.75 × 10^4 centimeters





4.75 × 10^-4 centimeters





4.75 × 10^5 centimeters





4.75 × 10^-5 centimeters

Answer 1

Alright, just in case there are more questions in the future. This is how scientific notation works. To put a number into scientific notation, just put the decimal right after the first number and use the powers of ten to express it right. So in this case .0000475 is your number. You put the decimal right after the 4, and then multiply by 10^-5 power to make it it's original value. Talk to me if you need more help. (Answer choice D)

Answer 2

`\lambda=4.75* 10^(-5)\ cm`

Explanation:

The wavelength of the visible blue light is 0.0000475 centimeters. We need to convert the given number into scientific notation. A number can be written in this form as :

`N=p* 10^q`

Where

p is any real number

q can be any integer

`0.0000475\ cm=(475)/(10000000)\ cm`

We can also write it as :

`(475)/(10000000)\ cm=475* 10^(-7)\ cm`

Dividing and multiplying
`475* 10^(-7)` by 100 as :

`475\ * 10^(-7)* (100)/(100)`

`\lambda=4.75* 10^(-5)\ cm`

So, the correct option is (d). Hence, this is the required solution.