a pin of length 2cm lies along d principal axis of a converging lens,d center being at a distance of 11cm from d lens d focal length of d lens is 6cm find d size of d image

 

A diverging lens of focal length 20cm &a converging mirror of focal length 10cm r placed coaxially at a separation of 5cm where shud an object b placed so dat a real image is formed at d object itself

 

A converging lens of focal length15cm & a converging mirror of focal length 10cm r placed 50cm apart with common principal axis A point source is placed in between d lens & d mirror at a distance of 40cm from d lens find d locations of d 2 images formed

 

A converging lens of focal length 15cm & a converging mirror of focal length 10cm r placed 50cm apart if a pin of length 2cm is placed 30cm from d lens farther away from d mirror where will d final image form & what will b d size of d final image