Match List I with List II :List I (Electromagnetic wave) List II (Production) A. Microwave I. Electrons in atoms emit light when they move from a higher energy level to a lower energy level B. Visible light II. Radioactive decay of nucleus C. Gamma rays III. Vibration of atoms and molecules D. Infra-red ray IV. Klystron valve or magnetron valve
Choose the correct answer from the options given below :
Electromagnetic Wave Production Matching
This question requires matching specific types of electromagnetic waves with their primary methods of production.
Matching Process
We will analyze each electromagnetic wave from List I and find its corresponding production method in List II:
- A. Microwave: Microwaves are typically generated using specialized electronic devices. Klystron and magnetron valves are common sources. Therefore, Microwave (A) matches with IV. Klystron valve or magnetron valve.
- B. Visible light: Visible light is often produced by electronic transitions within atoms. When electrons move from a higher energy level to a lower one, they emit photons, which constitute visible light. Thus, Visible light (B) matches with I. Electrons in atoms emit light when they move from a higher energy level to a lower energy level.
- C. Gamma rays: Gamma rays are high-energy photons produced during nuclear processes. Specifically, they are emitted during the radioactive decay of atomic nuclei. Hence, Gamma rays (C) match with II. Radioactive decay of nucleus.
- D. Infra-red ray: Infra-red radiation is primarily associated with thermal radiation, which originates from the vibration and rotation of atoms and molecules. Therefore, Infra-red ray (D) matches with III. Vibration of atoms and molecules.
Correct Combination
Based on the matching above, the correct combination is:
A - IV
B - I
C - II
D - III
This corresponds to option 3 in the provided choices.
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