line spectrum

• طيف يتكون من خطوط منفصلة واضحة ذات أطوال موجية أو ترددات محددة، وينشأ عادةً عن ذرات أو جزيئات مثارة تشع أو تمتص الضوء عند طاقات مميزة.

A spectrum consisting of discrete, distinct lines of specific wavelengths or frequencies, typically produced by excited atoms or molecules emitting or absorbing light at characteristic energies.

1. Discrete spectral linesC1formal

   A spectrum consisting of distinct, bright or dark lines at specific wavelengths, produced by atoms or molecules emitting or absorbing light.

   طيف خطي

   • The hydrogen line spectrum shows distinct lines in the visible range.
   • Scientists use line spectra to identify elements in distant stars.
   • Each element has a unique line spectrum, like a fingerprint.