noun🔗Share輝度、明るさ、光The state of being luminous, or a luminous object; brilliance or radiance"The full moon's luminosity lit up the entire backyard, making it easy to see even without a flashlight. "満月の輝度は裏庭全体を照らし、懐中電灯がなくても簡単に見えるようにしました。physicsastronomyenergyappearanceChat with AIVocabulary GamePractice Reading
noun🔗Share輝度The ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor"The physics lab carefully measured the luminosity of the new LED bulb to determine its efficiency in converting electrical power into visible light compared to the total energy it emitted. "物理学研究室では、新しいLED電球の輝度を注意深く測定し、電気エネルギーを可視光に変換する効率を、放出される総エネルギーと比較して測定しました。physicsenergyastronomyscienceChat with AIVocabulary GamePractice Reading
noun🔗Share光度The rate at which a star radiates energy in all directions"Astronomers measure a star's luminosity to understand how bright it truly is. "天文学者は、星が実際にどれほど明るいかを理解するために、星の光度を測定します。astronomyphysicsenergyChat with AIVocabulary GamePractice Reading
