Write the mirror formula for the case of convex mirror. What are the assumptions made in this derivation? [2 MARKS]

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Solution

Each point: 1 Mark

1. We know $u = - v e$

$v = + v e$

$f = + v e$

$\frac{1}{f}$ = $\frac{1}{v}$ + $\frac{1}{- u}$

Therefore $\frac{1}{f}$ = $\frac{1}{v}$ - $\frac{1}{u}$

2. Assumption: The object is placed between the pole and infinity.

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