Answer:
(i) Laser treatment is used in eye surgery where it used to retain the lost vision without the use of spectacles and contact lens.
(ii) Laser is used for skin treatment to remove scars, hair treatment
(iii) Laser beams are used for drilling of holes into objects and in welding
(iv) Laser tag games are quite popular nowadays where laser lights are used in guns to spot the players
(v) To construct a three dimensional image laser technology is very useful
