An object 15cm high is 30cm from pin-hole camera. If the ...
An object 15cm high is 30cm from pin-hole camera. If the height of the image formed at the back of the camera is 10cm, the image distance is
20cm
45cm
54cm
63cm
70cm
Correct answer is A
image heightobject height = image distanceobject distance
1015 = image distance30
image distance = 20cm
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