An angle between the incident ray and the normal. (Write the name)

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Solution

The angle between the incident ray and the normal is called the angle of incidence.
It is represented by $i$
The angle between the reflected ray and the normal is called the angle of reflection.
It is represented by $r$
Hence the correct answer is the angle of incidence.

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An angle between the incident ray and the normal. (Write the name)

The angle between the incident ray and the normal is called the angle of incidence.It is represented by iThe angle between the reflected ray and the normal is called the angle of reflection.It is represented by rHence the correct answer is the angle of incidence.

The angle between the incident ray and the normal is called the angle of incidence.
It is represented by $i$
The angle between the reflected ray and the normal is called the angle of reflection.
It is represented by $r$
Hence the correct answer is the angle of incidence.