Irradiance

Pronunciation: /ɪˈreɪdiəns/

Definitions of irradiance

noun the radiant energy emitted by a surface per unit area in a given direction

Example Sentences

A1 The amount of sunlight reaching Earth's surface is called irradiance.

A2 Solar panels work by converting solar irradiance into electricity.

B1 Measuring the irradiance levels is important for optimizing solar panel efficiency.

B2 The irradiance values vary depending on the time of day and weather conditions.

C1 Researchers are studying the effects of different wavelengths of irradiance on plant growth.

C2 The spectroradiometer was used to measure the spectral irradiance of the light source.

Examples of irradiance in a Sentence

formal The irradiance of the sunlight reaching the Earth's surface varies depending on the time of day and location.

informal The amount of sunlight hitting us changes throughout the day due to irradiance.

slang The sun's brightness levels, or irradiance, can be pretty intense during the summer months.

figurative Her smile had an irradiance that brightened up the entire room.

Grammatical Forms of irradiance

• plural: irradiances
• comparative: more irradiant
• superlative: most irradiant
• present tense: irradiates
• future tense: will irradiate
• perfect tense: has irradiated
• continuous tense: is irradiating
• singular: irradiance
• positive degree: irradiant
• infinitive: to irradiate
• gerund: irradiating
• participle: irradiated

Origin and Evolution of irradiance

First Known Use: 1601 year

Language of Origin: Latin

Story behind the word: The word 'irradiance' originated from the Latin word 'irradiantia', which is derived from the verb 'irradiare' meaning 'to shine upon'.

Evolution of the word: Originally used in the context of physics to describe the radiant flux (power emitted in the form of radiation) per unit area, the term 'irradiance' has evolved to also encompass the concept of brightness or intensity in various fields such as astronomy, photography, and environmental science.