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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]
The Central Bank of Sri Lanka has issued two commemorative notes. In 1998 a 200 rupees note was issued on Independence day to commemorate the 50th Independence Anniversary of the country. The note was issued along with three commemorative coins; a five thousand rupees gold coin, a one thousand rupees silver coin, and a ten rupees bi-metallic ...
The Central Bank of Sri Lanka has issued commemorative coins since 1957. On 15 December 2010, to mark the 60th Anniversary, the Central Bank of Sri Lanka issued a Frosted Proof crown size multi-colour silver commemorative coin in the denomination of Rupees 5000. It was the first multi-colour coin issued by the Central Bank.
Sri Lanka is considering the possibility of allowing the use of the Indian rupee for local transactions, as the island nation struggles to build its depleted foreign reserves and to emerge from ...
The banknotes of the Sri Lanka rupee are part of the physical form of Sri Lanka 's currency. The issuance of the rupee banknotes began in 1895. The Government of Ceylon introduced its first paper money in the form of the 5 rupee banknote in 1895. These were followed by 10 rupee notes in 1894, 1000 rupee notes in 1899, 50 rupee notes in 1914, 1 ...
The Sri Lankan Rupee ( Sinhala: රුපියල්, Tamil: ரூபாய்; symbol: Re and Rs (plural) in English, රු in Sinhala, ௹ in Tamil; ISO code: LKR) is the currency of Sri Lanka. It is subdivided into 100 cents ( Sinhala: සත, Tamil: சதம் ), but cents are rarely seen in circulation due to its low value. It is ...
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
On January 4, 2021, total market capitalisation crossed three trillion rupees mark for the first time. Hayleys announced a stock split on January 21 of 2021 and it resulted in increasing market capitalization by over 100 billion rupees. All share price index surpassed 8000 points for the first as a result.
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