9. Ukukhutshwa kweLaser akulawuleki.Ihlala ikhupha nokuba akukho sicelo senkqubo esifunekayo?
Indlela yoku-1: Khangela ikhompyuter yakho ukujonga ukuba ichaphazeleke na yintsholongwane.
Indlela yesi-2: Imigca yesignali ye-Optical ibuyiselwe umva, buyisela uxhulumaniso oluchanekileyo.
