लेसर की कहानी : हिंदी पीडीऍफ़ पुस्तक – विज्ञान | Lesar Ki Kahani : Hindi PDF Book – Science (Vigyan)
Pustak Ka Vivaran : Lesar ke prakash ke babat Mahattvapurn bat yah hai ki yah sansakt hota hai. Is prakash ki sab kee sab kiranen ek hee tarang-Lambai tha Rang ki hoti hain aur kadam mila kar chalati hain. Gun tatha Prabhav ki drshti se lesar ka kiran samany prakash ke kiranapunj se usee prakar bhinn hota hai jis prakar dril-siddh…….
Description about eBook : The important thing about laser light is that it is coherent. All the rays of this light were of the same wave-length and are colored and move together. In terms of quality and effectiveness, the laser beam differs from the beam of normal light in the same way as drill-proven …….
