Electromagnetic Waves and Applications – Rankers Physics

Properties of EM Waves: Practice Problem & Solution

Match List-I with List-II. List-I (Types of EM waves) a. Infrared rays b. Microwaves c. UV rays d. Gamma rays List-II (Application) (i) Water purifier (ii) Remote switches (iii) Used in medicine to destroy cancer cells (iv) Cooking Choose the correct option:
a(ii), b(iii), c(iv), d(i)
a(i), b(ii), c(iii), d(iv)
a(ii), b(iv), c(i), d(iii)
a(iii), b(i), c(ii), d(iv)

Solution Explained:

To solve this problem, we apply the core principles of Properties of EM Waves. Understanding the underlying formula is key to arriving at the correct answer below:

Infrared is used in remote switches (a-ii); Microwaves for cooking (b-iv); UV rays for water purification (c-i); and Gamma rays in cancer cell destruction (d-iii).

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