V is +ve or -ve in the case of concave mirror?

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If AB is an object, CD is an image formed. If AP is object distance CP is image distance from the mirror. Then choose the correct sign convention.

1. height of image = + ve 2. height of image = – ve

3. height of object = + ve 4. height of object = – ve

5. AP = + ve 6. AP = – ve

7. PC = + ve 8. PC = – ve.

If AB is the object and CD is the image formed. If AP is the object distance and CP is the image distance from the mirror. Then choose the correct sign convention?
$\begin{matrix} 1. h e i g h t o f i m a g e = + v e & 2. h e i g h t o f i m a g e = - v e 3. h e i g h t o f o b j e c t = + v e & 4. h e i g h t o f o b j e c t = - v e 5. A P = + v e & 6. A P = - v e 7. P C = + v e & 7. P C = + v e \end{matrix}$

Q. In the given figure, the focal length of the two mirrors

M - 1

and

M - 2

for the given incident rays are

f_{1}

and

f_{2}

respectively, then

In the problems when to use +ve singn when to use -ve singn in mirror sums

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