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According to current pattern for JEE Mains and JEE Advanced Go for CENGAGE although many people will suggest HCV but better STICK TO ONE BOOK and go for CENGAGE .. CENGAGE is best for both PHYSICS as...
When an electromagnetic wave passes through a medium , then frequency remains unchanged. The speed of electromagnetic wave inside a medium is given by, v=(1/µe)0.5where,µ is permeability...