Question

che 6 (b)
understand the electromagnetic spectrum and the mathematical relationships between energy, frequency, and wavelength of light.
name
block
answer all questions.

1. what is the electromagnetic spectrum?
2. draw a wave and label its parts.
3. what kind of relationship do wavelength and frequency have?
4. what is the relationship between energy and frequency?
5. what is the relationship between energy and wavelength?

Explanation:

1. The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma rays.
2. A wave has parts such as amplitude (height from the rest position to a crest or trough), wavelength (distance between two consecutive crests or troughs), and frequency (number of waves passing a point per unit time).
3. Wavelength and frequency have an inverse relationship. The product of wavelength ($\lambda$) and frequency ($

u$) is equal to the speed of light ($c$), i.e., $c = \lambda
u$.

1. Energy ($E$) and frequency ($

u$) are directly proportional. The relationship is given by the equation $E=h
u$, where $h$ is Planck's constant.

1. Energy ($E$) and wavelength ($\lambda$) are inversely proportional. Using $c = \lambda

u$ and $E = h
u$, we can get $E=\frac{hc}{\lambda}$.

Answer:

1. The electromagnetic spectrum is the range of all electromagnetic radiation types including radio - waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma rays.
2. A wave has amplitude, wavelength, and frequency as its main parts.
3. Inverse relationship ($c = \lambda

u$).

1. Directly proportional ($E = h

u$).

1. Inversely proportional ($E=\frac{hc}{\lambda}$).