steradian (Meaning)
Wordnet
steradian (n)
the unit of solid angle adopted under the Systeme International d'Unites
Synonyms & Antonyms of steradian
No Synonyms and anytonyms found
steradian Sentence Examples
- The solid angle subtended by a unit sphere at its center is one steradian.
- The total solid angle around a point is 4π steradians.
- The flux from a point source is constant over a spherical surface of constant radius and equal to the source strength divided by the surface area in steradians.
- The radiance of a surface is its luminous flux per unit solid angle per unit projected surface area in steradians.
- The brightness of a light source is measured in candelas per steradian.
- The luminous intensity of a light source is its luminous flux divided by its solid angular extent in steradians.
- The acceptance angle of an optical system is the maximum solid angle over which it can receive light, measured in steradians.
- The directivity of an antenna is its ratio of power density in a given direction to its average power density over all directions, measured in steradians.
- The gain of an antenna is its directivity multiplied by its efficiency in steradians.
- The radiation pattern of an antenna is a graphical representation of its power density as a function of direction in three-dimensional space, often plotted in steradians.
FAQs About the word steradian
the unit of solid angle adopted under the Systeme International d'Unites
No synonyms found.
No antonyms found.
The solid angle subtended by a unit sphere at its center is one steradian.
The total solid angle around a point is 4π steradians.
The flux from a point source is constant over a spherical surface of constant radius and equal to the source strength divided by the surface area in steradians.
The radiance of a surface is its luminous flux per unit solid angle per unit projected surface area in steradians.
