A lens forms a real image of an object, at a distance of 20cm from it. Where is the object placed in front of the lens if the image of the size is equal to the object.
A. 40cm
B. 30cm
C. 10cm
D. 20cm
Answers
Answered by
0
Answer:
20
Explanation:
Because the distanc of the object from the mirror is 20 so in side the mirror the distance of the object will also be 20
Answered by
0
Answer:
20
Explanation:
20 20 cm 20 20 20 20 20 20 20 20 20
Similar questions