The radiations with negative charge are________.
Correct answer: C. Beta radiations
- A. Alpha radiations
- B. Gamma radiations
- C. Beta radiations
- D. positron
Explanation
Beta radiation consists mainly of high-speed electrons, so it carries a negative charge. Alpha radiation is positively charged, gamma radiation has no charge, and a positron is positively charged. The likely mistake is choosing alpha because it is also a particle radiation, without recalling its positive charge.
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About Spectrum of Hydrogen
The hydrogen spectrum consists of discrete emission lines produced when electrons fall between quantised energy levels and release photons. Questions use the Rydberg equation, photon energy and wavelength, and identify the Lyman, Balmer, Paschen, Brackett and Pfund series, which differ from continuous spectra.
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