Match List-I with List-II.
| List-I | List-II | ||
|---|---|---|---|
| (Inventions) | (Inventor) | ||
| (A) | Ball Point Pen | (I) | Willis H. Carrier |
| (B) | Radio | (II) | E.G. Otis |
| (C) | Air Conditioner | (III) | G. Marconi |
| (D) | Lift | (IV) | L. Biro |
Choose the most appropriate answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Each invention is linked with the person who first made it work in a practical form.
(A) Ball Point Pen — this matches (IV) L. Biro. The Hungarian-born Laszlo Biro patented the ball-point pen in 1938; in many countries a ball-point pen is still called a “biro”.
(B) Radio — this matches (III) G. Marconi. The Italian Guglielmo Marconi sent the first radio signals in the 1890s and shared the 1909 Nobel Prize in Physics for wireless telegraphy.
(C) Air Conditioner — this matches (I) Willis H. Carrier. The American engineer Willis Carrier built the first modern air-conditioning system in 1902, to control the humidity in a printing works.
(D) Lift — this matches (II) E.G. Otis. Elisha Graves Otis invented the safety lift in the 1850s, with a brake that stops the car if the rope breaks, which made passenger lifts safe.