Brijlal and Subramanyam are renowned physicists with extensive experience in teaching and research. Brijlal is a well-known expert in the field of optics and has written several textbooks on the subject. Subramanyam is also an experienced physicist with a strong background in optics and photonics. Together, they have written several popular textbooks on optics, including "Optics" which is widely used by students and professionals.

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The book "Optics" by Brijlal and Subramanyam is considered a best resource for several reasons: