Question

an object is placed at a distance of 10 cm from a concave mirror of focal length 20cm
a. draw a ray diagram for the formation of image
b. calculate the image distance
c. state two characteristics of the image formed ​

Answer 1

Explanation:

u=-10 cm, f= -20 cm b) l/f=1/v-1/u v= -20/3 cm c) here object is between focal length and pole, Hence image is virtual, erect and magnified.