Question

write the three characteristics of light​

Answer 1

Answer:

it does not require medium for propagation

it travels with a speed of 3*10^8 m/s

it travels in a straight line

Explanation:

Answer 2

Answer:

Concept:

Light:

• The word "light" can be used to refer to electromagnetic radiation of any wavelength, whether it is visible or not visible.
• Gamma rays, X-rays, microwaves, and radio waves are all forms of light in this sense.
• Intensity, propagation direction, frequency or wavelength spectrum, and polarization are the four main properties of light.
• One of nature's basic constants is the speed of light in a vacuum, which is 299 792 458 meters per second (m/s).
• Similar to all other forms of electromagnetic radiation, visible light is propagated by massless elementary particles called photons, which act as both waves and particles in an electromagnetic field.

Characteristics Of Light​:

• Light travels in a straight line.

• As a transverse wave, light travels through space without the aid of a physical medium. Through a vacuum, light can pass. It moves at a speed of 3 × $10^{8}$ m/s through vacuum.

• When light moves from one medium to another, its velocity alters.
• Whenever light transitions from one medium to another, its wavelength (λ) changes.
• The frequency (f) of the light wave remains the same in all media.

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