Question

sign convention of lenses
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Answer 1

Answer:

the side from which rays are coming is taken to be -ve (where object is placed) and the side where rays converge or diverge on other side that side is +ve except when the object is kept close to lens in that case image forms back side kf obj and v is taken -ve

Answer 2

HEYA HEYA MATE HERE U GO

HEYA MATE HERE U GO . all distance are measured from the pole.

HEYA MATE HERE U GO . all distance are measured from the pole. . distance measured along the direction of the light rays are taken as positive

HEYA MATE HERE U GO . all distance are measured from the pole. . distance measured along the direction of the light rays are taken as positive distance measured opposite to the direction of the incident light rays are taken as negative

HEYA MATE HERE U GO . all distance are measured from the pole. . distance measured along the direction of the light rays are taken as positive distance measured opposite to the direction of the incident light rays are taken as negative . the heights measured vertically above from the points on axis are taken as positive.

HEYA MATE HERE U GO . all distance are measured from the pole. . distance measured along the direction of the light rays are taken as positive distance measured opposite to the direction of the incident light rays are taken as negative . the heights measured vertically above from the points on axis are taken as positive. . the heights measured vertically down from the points on axis are taken as negative.

HEYA MATE HERE U GO . all distance are measured from the pole. . distance measured along the direction of the light rays are taken as positive distance measured opposite to the direction of the incident light rays are taken as negative . the heights measured vertically above from the points on axis are taken as positive. . the heights measured vertically down from the points on axis are taken as negative. HOPE THIS WILL HELP U