Expected science gk question in hindi for ssc cgl pcs upsc police ibps

विज्ञानं की ट्रिक्स | science gk trick in hindi for ssc cgl pcs upsc police ibps

Most Expected science gk questions for all competitive exams like ssc cgl 2017 , up si , uppsc , uppcs , state pcs , upsc , ibps , po  , police etc



best trick to remember uses concave lens and convex lens + concave mirror and convex mirror - science gk in hindi for all competitive exams like ssc cgl 2017 , up si , uppsc , state pcs , ibps , po , banking

science general knowledge in hindi

vigyan samanya gyan

uppsc upsssc

lower pcs upper pcs

ssc cgl 2017 for 5 august 2017 first , second , third shift