Question

Gino made a table to describe parts of the electromagnetic spectrum.

What mistake did Gino make?

X-rays should have a low frequency and a long wavelength.
Infrared light should have a high frequency, not a low frequency.
Radio waves should have a very high frequency and a very short wavelength.
Ultraviolet light should have a short wavelength, not a long wavelength.

Answer 1

Answer: Ultraviolet light should have a short wavelength, not a long wavelength.

Step-by-step explanation:

Relation between the frequency and wavelength if given by:

`\\u=(c)/(\lambda )`

`\\u=\text{frequency of electromagnetic wave}`

`\lambda =\text{wavelength of an electromagnetic wave}`

`c=\text{speed of light}=3* 10^(8) m/s`

From the above relation we can say that frequency and wavelength are inversely related to each other.

`\\u\propto(1)/(\lambda )`

From the Gino's table, the mistake made by her was , instead of writing low wavelength for Ultraviolet rays she wrote long. Since the ultraviolet rays have higher frequency they have low value wavelength.