Class/Course - Engineering Entrance

Subject - Physics

Chapter - Communication Systems


Attention Engineering Entrance standard Aspirants! Just Exam provide a platform to all students who want to make practice for various subject online. We prepare this platform on the base of CBSE. If you want to join our unlimited test series, then please write us at info@justexam.in about your class/course


Dear User, Kindly login/register to view answer & explanation of each question.
Click here to Login/Sign Up.
Q.1 Consider telecommunication through optical fibres. Which of the following statements is not true?
  Optical fibres can be graded refractive index
  Optical fibres are subjected to electromagnetic interference from outside
  Optical fibres have extremely low transmission loss
  Optical fibres may have homogeneous core with a suitable cladding