Question

the student is conducting an experiment with concave mirror of focal length 10cm.Find position of the when object is placed at 20cm​

Answer 1

Answer:

Explanation:

We have f=-10 and u=-20 then from relation 1/f= 1/v + 1/ u. We get 1/v = 1/20- 1//10 = -1/20 this gives v= -20 is the ans...