CUET · PHYSICS · PYQ PAPER 2023
Match the different types of Electro Magnetic Waves and their detections
| List-I (EM Waves) | List-II (Detection) |
| A. Light | I. Receiver's arial |
| B. Infra red | II. Point contact diodes |
| C. Radiowave | III. Photocells |
| D. Microwave | IV. Thermopiles |
Choose the correct answer from the options given below:
- A A-IV, B-III, C-II, D-I
- B A-III, B-IV, C-I, D-II
- C A-II, B-I, C-III, D-IV
- D A-I, B-II, C-IV, D-III
Answer & Solution
Correct Answer
(B) A-III, B-IV, C-I, D-II
Step-by-step Solution
Detailed explanation
Light is detected by photocells (III), while infrared is measured using heat-sensitive thermopiles (IV). Radiowaves require a receiver's aerial (I), and microwaves are often detected via point contact diodes (II). B) A-III, B-IV, C-I, D-II
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