ECAT Engineering Entry Test 2023 Physics Optical Instruments 1 MCQS Online Preparation Sample Paper Questions with Answer

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cyberoopsblog says:

November 22, 2016 at 11:46 pm

Please correct these mistakes:

3. The revolving power of a lens is given by
(a) R = 1/?min= D/1.22 ?

7. A compound microscope is consists of an eye piece of focal length
(a) Large

1. umair ahmed says:
  
  March 21, 2017 at 2:21 am
  
  hi whats going on