Match List-I with List-II
|
List-I Electromagnetic Waves |
List-II Production |
|
(A) Radio waves |
(I) Vibration of atoms and molecules |
|
(B) X-rays |
(II) originates from an atomic nucleus |
|
(C) $γ$-radiation |
(III) produced by accelerating electrons in a circuit |
|
(D) infrared waves |
(IV) emitted from heavy atoms |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
|
List-I Electromagnetic Waves |
List-II Production |
|
(A) Radio waves |
(III) produced by accelerating electrons in a circuit |
|
(B) X-rays |
(IV) emitted from heavy atoms |
|
(C) $γ$-radiation |
(II) originates from an atomic nucleus |
|
(D) infrared waves |
(I) Vibration of atoms and molecules |
-
(A) Radio waves — (III) Produced by accelerating electrons in a circuit: Radio waves are generated by oscillating electric charges (electrons) in conducting wires, such as those found in radio transmitters and antennas.
-
(B) X-rays — (IV) Emitted from heavy atoms: X-rays are produced when high-energy electrons strike a metal target (usually a heavy atom like tungsten). The sudden deceleration of electrons or the transitions of inner-shell electrons in these heavy atoms releases X-ray photons.
-
(C) γ-radiation (Gamma) — (II) Originates from an atomic nucleus: Gamma rays are the highest energy EM waves and are emitted during radioactive decay or nuclear reactions as the nucleus transitions from an excited state to a lower energy state.
-
(D) Infrared waves — (I) Vibration of atoms and molecules: Infrared radiation is often referred to as "heat waves." It is produced by the thermal motion and vibrations of atoms and molecules within a substance.