Millionaire Mode

The mirror formula - class-XI

Question 1 of 17

The relation among $u$, $v$ and $f$ for a mirror is:

  1. $f=\dfrac{uv }{u + v}$
  2. $v = \dfrac{fu}{u + f}$
  3. $u=\dfrac{ fv}{f + v}$
  4. all of these

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000