Question

4. From the following list, choose the one that describes the portion of the range of

electromagnetic waves that is visible.
a. More than ½
b. about 1/2
C. 1/4-1/2
d. 1/10-1/4
e. much less than 1/10

Answer 1

The correct choice that describes the visible portion of the electromagnetic spectrum is 'e. much less than 1/10.' The visible range is a very small fraction of the entire spectrum, and this tiny slice lies between the infrared and ultraviolet ranges, with wavelengths between 400 and 700 nm.

Step-by-step explanation:

The question is asking to identify what portion of the electromagnetic spectrum is visible to the human eye. The visible spectrum represents a very small part of the electromagnetic spectrum, which includes a wide range of waves from radio to gamma rays. The visible range is situated between the infrared and ultraviolet spectra, with wavelengths approximately between 400 and 700 nanometers (nm).

From the provided options, the correct answer is e. much less than 1/10. The visible spectrum is indeed a tiny fraction of the entire electromagnetic spectrum, significantly less than ten percent of it.

It's important to note that if humans could see energy in the radio spectrum, our vision would encompass a vastly different range of wavelengths, which are much longer than those of visible light. The world would appear extremely different as the principles of reflection, absorption, and transmission of these waves are distinct from visible light.

Answer 2

The portion of the range of electromagnetic waves that is visible to the human eye is much less than 1/10. Therefore, the correct answer is e. much less than 1/10. Visible light is a very small portion of the electromagnetic spectrum, with wavelengths ranging from about 400 to 700 nanometers. This represents only a small fraction of the entire electromagnetic spectrum, which includes radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays.