Match List - I with List - II.List - IList - II(Physicist)(Contributi…

The correct answer is Option (1) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

Each scientist is linked to one step in the history of electromagnetic waves: the theory, the experimental proof, the shorter-wavelength sources and the practical transmission.

(A) James Max well — this matches (II) Displacement current. Maxwell added the displacement current to Ampere's law, which led him to predict electromagnetic waves.

(B) G. Marconi — this matches (IV) Transmission of EM waves. Marconi used electromagnetic waves to transmit signals over long distances, the beginning of radio communication.

(C) J.C. Bose — this matches (I) Production of shorter EM waves. Bose produced electromagnetic waves of much shorter wavelength (about 25 mm to 5 mm) in his laboratory.

(D) Hienrich Hertz — this matches (III) Demonstrated the existence of EM waves. Hertz produced and detected electromagnetic waves in 1887, the first experimental proof of Maxwell's prediction.

NCERT (2026-27):
Introduction – “… While applying the Ampere’s circuital law to find magnetic field at a point outside a capacitor connected to a time-varying current, Maxwell noticed an inconsistency in the Ampere’s circuital law. He suggested the existence of an additional current, called by him, the displacement current to remove this inconsistency.”

Introduction – “… Hertz, in 1885, experimentally demonstrated the existence of electromagnetic waves.”

Sources of Electromagnetic Waves – “… Seven years after Hertz, Jagdish Chandra Bose, working at Calcutta (now Kolkata), succeeded in producing and observing electromagnetic waves of much shorter wavelength (25 mm to 5 mm).”

Sources of Electromagnetic Waves – “… At around the same time, Guglielmo Marconi in Italy followed Hertz’s work and succeeded in transmitting electromagnetic waves over distances of many kilometres.”