A A converging lens has focal length 5 cm. An object is placed 3 cm from the centre of the
lens, on the principal axis. Draw an accurate
ray diagram to represent this.
b Use your diagram to determine the distance of
the virtual image formed from the lens.

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

Answer is to avoid experimental error

Aconductor easily transfer heat