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A convex lens of focal length $$\begin{aligned}& 15 \\ & \text{cm}\end{aligned}$$, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :
- (a)$$\begin{aligned}& 15 \\ & \text{cm}\end{aligned}$$ and $$\begin{aligned}& -15 \\ & \text{cm}\end{aligned}$$ from lens
- (b)$$\begin{aligned}& -15 \\ & \text{cm}\end{aligned}$$ and $$\begin{aligned}& +15 \\ & \text{cm}\end{aligned}$$ from lens
- (c)$$\begin{aligned}& -30 \\ & \text{cm}\end{aligned}$$ and $$\begin{aligned}& +30 \\ & \text{cm}\end{aligned}$$ from lens
- (d)$$\begin{aligned}& -30 \\ & \text{cm}\end{aligned}$$ and $$\begin{aligned}& -30 \\ & \text{cm}\end{aligned}$$ from lens
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(C) / - 30 cm and + 30 cm from lens
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