Ause Question 3 of 20 Which statement BEST describes visible light? A. Visible light occupies most of the electromagnetic spectrum and requires a medium for travel. B. Visible light occupies most of the electromagnetic spectrum and can travel in a vacuum. C. Visible light occupies a small part of the electromagnetic spectrum and requires a medium for travel. D. Visible light occupies a small part of the electromagnetic spectrum and can t

The correct option is D(Visible light occupies a small part of the electromagnetic spectrum and can travel in a vacuum.)

Explanation: An electromagnetic spectrum describes the distribution of the electromagnetic waves according to their frequency and wave length. The electromagnetic waves in the spectrum arranged from the longest wavelength to the shortest wavelength includes:

radio waves,

microwaves,

infrared,

visible light,

ultraviolet,

X-rays, and

gamma rays

Visible light in the spectrum occupied the wavelength that the human eye can detect. It consist of seven wavelength ranges that includes the following colours:red, orange, yellow, green, blue, indigo, and violet.

It occupies a small part of the electromagnetic spectrum and can travel in a vacuum.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).