he wavelength of blue light is 450 nm. This can be written as a. 450x10-9m b. 4.

Question

he wavelength of blue light is 450 nm. This can be written as

a. 450x10-9m

b. 4.5x10-7m

c. 4500 A

d. All answers are correct

Frequency X10*HzWavelength nm 1-0.01 x 1o 0.01 x 1014to 1 x 1014 Wave Type Frequency (Hz) 1 - 1012 1012- 1014 4.3 x 1014- 4.8 x Radio Infrared Visible Red 1014 4.3 x 1014-4.8 x 10 698 nm 625 nm 4.8 x 105.1X4.8 x 1014-5.1 x 104 Visible Orange 1014 5.1 x 101-54X 5 1014 Visible Yellow 5.1 x 1014-5.4 x 1014588 nm-555 nm 5.4 x 1014-6.2 x 1014 Visible Green 5.4 x 1014-6.2 x 101 6.2 x 1014-7 x 1014 6.2x 1014- 7x 104 7x1014-74x101 8 x 1014- 1016 Visible Blue Visible Violet 147x1014-74x104 8x1014-100x104 100 x 1014- 1,000,000 x 1014 1,000,000 x 1014 Ultraviolet X-rays 1016- 1020 Gamma rays 3

Explanation / Answer

Q) The wavelength of blue light is 450nm. This can be written as ?

Ans. d. All answers are correct.

1nm = 1 * 10-9m.

So, 450nm = 450 * 10-9m = 4.5 * 10-7m.

Again 450nm = 4500 A.

So, here all answers are correct.

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