Question
A concave mirror of focal length 15 cm forms an image having twice the linear dimensions of the object. The position of the object when the image is virtual will be
Answer: Option B
:
B
f=-15 cm, m=+2(Positive because image is virtual)
∵m=−vu⇒v=−2u By using mirror formula
1−15=1(−2u)+1u⇒u=−7.5cm
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:
B
f=-15 cm, m=+2(Positive because image is virtual)
∵m=−vu⇒v=−2u By using mirror formula
1−15=1(−2u)+1u⇒u=−7.5cm
Was this answer helpful ?
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