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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Adam's Peak is a 2,243 m (7,359 ft) tall conical sacred mountain located in central Sri Lanka. [1] [2] It is well known for the Sri Pada ( Śrī Pāda ; Sinhala: ශ්රී පාද, 'sacred footprint'), a 1.8 m (5 ft 11 in) rock formation near the summit whose name is also used for the mountain itself. In Buddhist tradition the print is ...
According to the 2012 census the population of Sri Lanka was 20,359,439, giving a population density of 325/km2. [7] The population had grown by 5,512,689 (37.1%) since the 1981 census (the last full census), equivalent to an annual growth rate of 1.1%.
Adult and child observers perceived a right heterotropia as more disturbing than a left heterotropia, and child observers perceived an esotropia as "worse" than an exotropia. Successful surgical correction of strabismus, for adult as well as children, has been shown to have a significantly positive effect on psychological well-being.
The All Share Price Index is one of the principal stock indices of the Colombo Stock Exchange in Sri Lanka. ASPI measures the movement of share prices of all listed companies. It is based on market capitalisation. Weighting of shares is conducted in proportion to the issued ordinary capital of the listed companies, valued at current market ...
t. e. Parliamentary elections were held in Sri Lanka on 5 August 2020 to elect 225 members to Sri Lanka's 16th Parliament. [1] [2] [3] 16,263,885 people were eligible to vote in the election, 31.95% of whom were young voters. [4] [5] The incumbent Sri Lanka People's Freedom Alliance coalition claimed a landslide victory in the election, winning ...
Divisional secretariats are the third-level administrative divisions of the country and there are currently [as of?] 331 divisional secretariats in Sri Lanka. [1] They were formerly known as D.R.O. divisions, after the divisional revenue officer. Later the D.R.O.s became assistant government agents and the givisions were known as A.G.A. divisions.
Sri Lanka, geologically speaking is an extremely old country. Ninety percent of the rocks of the island are of Precambrian age, 560 million to 2,400 million years ago. The gems form in sedimentary residual gem deposits, eluvial deposits, metamorphic deposits, skarn and calcium-rich rocks. Nearly all the gem formations in Sri Lanka are located ...
The blue sapphire was declared the national gemstone of Sri Lanka in October 2003. A postage stamp worth LKR 4.50 was issued on 2 October 2003 to mark the announcement. Sri Lanka is famous for blue sapphires, especially known for their size. National sport: Volleyball: Volleyball was officially recognised as the national sport of Sri Lanka in 1991.
The Sri Lankan Advanced Level ( A-level) formerly called Higher School Certificate (HSC), is a General Certificate of Education (GCE) qualification exam in Sri Lanka, similar to the British Advanced Level, conducted annually by the Department of Examinations of the Ministry of Education. It is usually taken by students during the final two ...