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Study General knowledge
During study I read Arthur Compton discovered X-rays and cosmic rays
And I m very happy to see that now millions of people treated and their life saved and help in diagnosis of many diseases
Ay Allah hm sab ko b sab k liye asani pada krny Wala bna de
During study I read Arthur Compton discovered X-rays and cosmic rays
And I m very happy to see that now millions of people treated and their life saved and help in diagnosis of many diseases
Ay Allah hm sab ko b sab k liye asani pada krny Wala bna de
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