. A rod of length 10 cm lies along the principal axis of a concave mirror of focal length
10 cm in such away that the end closer to the pole is 20 cm away from it. Find the length of the image.
A: 2 cm
B: 4 cm
C: 5 cm
D: 6 cm
Best Answer
Explanation:
The position of image of nearer end to mirror can be found out using mirro equation
,
Similarly position of image of farther end to mirror can be found out as
Thus, the length of the image = 20 - 15 =5cm.
Final Answer:
Hence,the length of the image is 5cm.
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