An object is placed at distance of 30 cm from a concave lens of focal length 15 CM least 4 characters (nature ,position, etc) of the image formed by the lens
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As focal length in concave lens is always negative which is -15cm
And distance of object from lens is also negative ie, (u) = -30
By using the lens formula
1/f = 1/v - 1/u
V=-10
And distance of object from lens is also negative ie, (u) = -30
By using the lens formula
1/f = 1/v - 1/u
V=-10
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