R.R.C. (Patna) exam of the year 2014 held on dated 9 October, 2014 (1st-Shift). We are giving 50 questions of General Awareness of this exam with answers.1. The formation of three dimensional image by interference of two light beams
from the laser or other coherent source of light is called–
(A) Optical Photography (B) Digital Photography (C) Holography (D) Radiography
(Ans : C)
2. Which of