Question

State the sign convention used to measure length of image and object.

Geet ke jarurat to hr mafil m hoti h
Pyar ki jarurat to hr dil m hoti h
bina dosti ke adhuri h sath
kuke Dosti ke jarurat hr pal hoti h
°_°aaaaa....​

Answer 1

• so u is the object distance
• v is the image distance
• m is magnification for mirror (-v/u) and for lens (v/u)
• the things above the principal axis is taken as +ve and below taken as -ve

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Answer 2

Answer:

1. the object is always kept on left of the mirror

2. all distance measure toward the rite of the poal are taken to be positive

3. all distance measure toward the left of the mirror are taken to be negative

4. distance measure vertically upward direction are taken to be positive

5. distance measure toward the vertically downward direction are taken to be negative

Explanation:

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