take a look at the numbers in the data table shown in the previous step. The sec
ID: 290479 • Letter: T
Question
take a look at the numbers in the data table shown in the previous step. The second column lists all the frequencies, while the third column has the same frequencies recorded in powers of 1014 . The fourth column has some wavelength values already worked out, while some are missing. You will fill in the missing values later in the lab.
Next you need a printed copy of page 11 of this lab. This is called Chart # 1 and you will use it to mark various parts of the electromagnetic spectrum, and also attach it when you submit the lab.
The top line of the Chart shows 25 intervals with about 1 cm per interval. The exact distance will depend on the resolution of your screen and printer. Notice how each tick mark rises by a factor of 10.
Use the second column of the data table shown in step A to mark the location of as many parts as you can on the chart. For example, from the left end up to 1012 will be radio, from 1012 to 1014 will be infrared etc.
Label the chart clearly as you will be uploading it when you enter your lab answers.
You have constructed what is known as a “logarithmic” scale, where each centimeter represents a power of 10. This is done to enable us to fit a wide range of numbers in a small space.
uency X10"HzWavelength nm 1-0.01 x 1o4 0.01 x 1014to 1 x 1014 Wave Type Frequency (Hz)Freq 1-1012 1012 10 Radio Infrared 4.3 x 1014-4.8 x 1014 Visible Red 4.3 x 1014-4.8 x 10698 nm- 625 nmm 48 x 10-5.lx4.8 x 1014-5.1 x 10 1014 Visible Orange Visible Yellow 5.1 x 1014-5.4 x 1014588 nm- 555 nmm 1014 54 x 101-62X54 x 1014-6.2 x 10 1014 Visible Green 6.2 x 1014-7 x 1014 6.2 x 1014-7 x 1014 7x1014-74x104 8 x 104- 1016 1016- 1020 Visible Blue 7x1014-74x104 8x104-100x1014 100 x 1014- 1,000,000 x 1014 1,000,000 x 10 Visible Violet Ultraviolet X-rays Gamma rays 1020 The table above lists the range of electromagnetic waves. Since each range merges smoothly into the adjacent one, the values given are approximate. There may be some overlap in numbers used depending on the source. Colors seen with the human eye are also subjective, as some people may not be able to distinguish between shades of yellow and orange or blue and green. The quality of printers, inks, and screen resolutions also determines how accurately colors are evidentExplanation / Answer
ANSWER-WAVELENGTH OF DIFFERENT PORTIONS OF THE ELECTROMAGNETIC SPECTRUM ARE AS FOLLOWS
RADIOWAVES - >1mm
INFRARED-710nm-1mm
VISIBLE RED-622-780nm
VISIBLE ORANGE-597-622nm
VISIBLE YELLOW-577-597nm
VISIBLE GREEN-492-577nm
VISIBLE BLUE-455-492nm
VISIBLE VIOLET-390-455nm
ULTRAVIOLET-10-390nm
X-RAYS-0.01-10nm
GAMMA RAYS-<0.01nm
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