Question

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Answer 1

Que 1 - ᴡʜᴀᴛ ɪs ᴘʟᴜʀᴀʟ ?

Ans 1 - The plural form of a word is the form that is used when referring to more than one person or thing. ... The plural of a noun is the form of it that is used to refer to more than one person or thing.

Que 2 - ᴡʜᴇɴ ᴡᴇ ᴜsᴇ 'ᴛʜᴀᴛ'?

Ans 2 - Writers should use the singular “they” in two main cases: (a) when referring to a generic person whose gender is unknown or irrelevant to the context and (b) when referring to a specific, known person who uses “they” as their pronoun.

Answer 2

Explanation:

Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave. ... Wavelength is inversely proportional to frequency. This means the longer the wavelength, lower the frequency.