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JEE Main201910 Apr 2019Morning ShiftPhysicsElectromagnetic WavesActual

Given below in the left column are different modes of communication using the kinds of waves given in the right column. (1) Optical Fibre Communication (P) Ultrasound (2) Radar (Q) Infrared Light (3) Sonar (R) Microwaves (4) Mobile Phones (S) Radio Waves From the options given below, find the most appropriate match between entries in the left and the right column.

Options

  1. A1 - Q , 2 - S , 3 - P , 4 - R
  2. B1 - S , 2 - Q , 3 - R , 4 - P
  3. C1 - Q , 2 - S , 3 - R , 4 - P
  4. D1 - R , 2 - P , 3 - S , 4 - Q

Correct answer

A. 1 - Q , 2 - S , 3 - P , 4 - R

Step-by-step solution

Optical fibre – Infrared light RADAR – Radiowaves SONAR – Ultrasound Mobile Phones – Microwaves

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