Match the words given in List-I with their meanings given in List-II.
| List-I (Words) | List-II (Meanings) |
|---|---|
| (A) Optics | (I) The study of very low temperatures and how things behave at them |
| (B) Gemology | (II) The study of light and how it behaves |
| (C) Areology | (III) The study of the planet Mars |
| (D) Cryogenics | (IV) The study of precious stones, such as diamonds and rubies |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
| List-I | List-II | Explanation | Example |
|---|---|---|---|
| (A) Optics | (II) The study of light and how it behaves | Optics is the part of physics that studies light, such as how it bends and reflects. | The chapter on optics taught us why a straw looks bent in a glass of water. |
| (B) Gemology | (IV) The study of precious stones, such as diamonds and rubies | Gemology is the study of gemstones, their kinds and their quality. | Before joining the family jewellery shop in Jaipur, Ritika took a diploma in gemology. |
| (C) Areology | (III) The study of the planet Mars | Areology is the study of the planet Mars, its rocks and its surface. | Photos sent by the Mangalyaan mission were very useful for areology. |
| (D) Cryogenics | (I) The study of very low temperatures and how things behave at them | Cryogenics is the study of very low temperatures and what happens to things at them. | Rocket engines that burn liquid hydrogen depend on cryogenics to keep the fuel extremely cold. |