Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 201910 AprilMorning Shift
Exam
JEE Main
Year
2019
Date
10 April
Shift
Morning Shift
Subject
Physics
Chapter
Electromagnetic Waves

JEE Main 2019 · 10 April · Morning Shift · Physics · Electromagnetic Waves

Given below in the left column are different modes of communication...

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−R1 - Q, 2 - S, 3 - P, 4 - R
  2. B1−S,2−Q,3−R,4−P1 - S, 2 - Q, 3 - R, 4 - P
  3. C1−Q,2−S,3−R,4−P1 - Q, 2 - S, 3 - R, 4 - P
  4. D1−R,2−P,3−S,4−Q1 - R, 2 - P, 3 - S, 4 - Q

Correct answer

A. 1−Q,2−S,3−P,4−R1 - Q, 2 - S, 3 - P, 4 - R

Step-by-step solution

Optical fibre – Infrared light
RADAR – Radiowaves
SONAR – Ultrasound
Mobile Phones – Microwaves
Practice Electromagnetic Waves on Quantrex Academy →

More from Electromagnetic Waves

The electric field associated with an electromagnetic wave travelling in vacuum is given… JEE Advanced 2026A monochromatic source of light operating at 15 kW emits 2.5× 10^ 22 photons/s. The… JEE Main 2026For an electromagnetic wave propagating through vacuum, k , E and ω represent propagation… JEE Main 2026A point light source emits E.M. waves in free space. A detector, placed at a distance of… JEE Main 2026A displacement current of 4.0 A can be set up in the space between two parallel plates of… JEE Main 2026A magnetic field vector in an electromagnetic wave is represented by B =B_0 (2π vt-(2π… JEE Main 2026An electromagnetic wave travels in free space along the x -direction. At a particular… JEE Main 2026An electromagnetic wave travelling in x -direction is described by field equation E_y =… JEE Main 2026 Full Electromagnetic Waves list All JEE Main PYQs