1 Which equation is equivalent to 3
- 272+2
N
3* = 3-3x+2
3* = 33x+6
O 3-* = 33x+2
3-*= 33x+6
o

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: