Question

What are the sign convention for reflection of spherical mirror?

Answer 1

Answer:

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Answer 2

Answer:

$\large{ \underline{ \mathfrak{ \green{ \: sign \: \: convention \: \: for \: \: reflection \: \: by \: \: spherical \: \: mirror \: \: - }}}}$

• The object is placed to the left of the corner.

• All distances parallel to the principal axis are measured from the pole of the mirror.

• All distances measured in the direction o incident ray ( along+ x-axis ) are taken as positive those measured against the direction of incident ray ( along - X - axis ) are taken as negative.

• Distance measured perpendicular to and above the principal axis are taken as positive.

• Distance measured perpendicular to and below the principal axis are taken as negative.