Important Questions, Class 12Important Questions for CBSE Class 12 Physics Chapter 15 – Communication SystemsBy Mr AhmadPublished on: 03/01/2022Follow Us Table of Contents ToggleCBSE Class 12 Physics Chapter 15 – Communication Systems Important Question AnswerVery Short Type Question – 1 MarkCBSE Class 12 Physics Chapter 15 – Communication Systems Important Question AnswerVery Short Type Question – 1 Mark