Observation

 

This question was not popular amongst students. The acronym ‘LASER’ and its meaning should not pose any problem to candidates, yet, many candidates failed to recognize and interpret the acronym. Performance was fair.

The expected answer is

(a) LASER – Light Amplification by Stimulated Emission of Radiation    
(b) Laser

  It is a device that generates an intense beam of coherent monochromatic light