Which of the following statements regarding spectral series is correct...
Balmer series produced when electronic transition corresponds from an higher level to 2nd level. Lyman Series lie in U. V region.transition from any higher level to 3rd level belongs to pfund series. the paschen series appear in infra red region
Which of the following statements regarding spectral series is correct...
Spectral Series
Spectral series refers to the patterns of electromagnetic radiation emitted or absorbed by atoms when they transition from one energy level to another. There are different spectral series, including:
- Lyman series: electronic transitions to the n=1 energy level, producing ultraviolet radiation.
- Balmer series: electronic transitions to the n=2 energy level, producing visible light.
- Paschen series: electronic transitions to the n=3 energy level, producing infrared radiation.
- Pfund series: electronic transitions to the n=5 energy level, producing infrared radiation.
Correct statement
The correct statement regarding spectral series is option B, which states that Paschen series appears in the infrared region. This is because electronic transitions to the n=3 energy level result in the emission or absorption of longer-wavelength photons, which fall in the infrared region of the electromagnetic spectrum.
Incorrect statements
The other statements are incorrect:
- The lines in the Balmer series correspond to the electronic transition from the energy level higher than n = 1 energy level: This is false, as the Balmer series corresponds to electronic transitions to the n=2 energy level.
- The line of Lyman series appear in the visible region: This is false, as the Lyman series corresponds to electronic transitions to the n=1 energy level, which produce ultraviolet radiation.
- Transition from higher energy levels to 4th energy level produces Pfund series which fall in the infrared region: This is false, as Pfund series corresponds to electronic transitions to the n=5 energy level, which produce infrared radiation.
In conclusion, understanding the different spectral series and their corresponding energy levels and wavelength ranges is important in various fields, including astronomy, spectroscopy, and quantum mechanics.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.