An object is placed `12 cm` to the left of a converging lens of focal length `8cm`. Another converging lens of `6 cm` focal lengh is placed at a distance of `30 cm` to the right of the first lens. The second lens will produce

Options

A. no image
B. a virtual enlarged image
C. a real enlarged image
D. a real smaller image

Answer

C

Explanation

Image by `L_1:(1)/(v_1)-(1)/(-12)=(1)/(8)`
`(1)/(v_1)=(1)/(8)-(1)/(12)=(1)/(24)`
`v_1=24cm`
Images by `L_2:(1)/(v_2)=(1)/(-6)=(1)/(6)impliesv_2=infty`