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  2. Paper chemicals - Wikipedia

    en.wikipedia.org/wiki/Paper_chemicals

    Paper Coating 1) The paper or board 2) The first layer of coating to even out the surface 3) A second layer for an even smoother and whiter surface. Pigments that absorb in the yellow and red part of the visible spectrum can be added. As the dye absorbs light, the brightness of the paper will decrease, unlike the effect of an optical ...

  3. All India Pre Medical Test - Wikipedia

    en.wikipedia.org/wiki/All_India_Pre_Medical_Test

    In 2010, the pattern of AIPMT was changed. The examination was replaced by a two-tier or two-stage test – The AIPMT Prelims and the AIPMT Mains, in which the AIPMT Prelims was used to be objective exam and AIPMT Mains was used to be subjective exam. The candidates who could qualify the AIPMT Prelims were eligible to give the AIPMT Mains test.

  4. Hill reaction - Wikipedia

    en.wikipedia.org/wiki/Hill_reaction

    Hill's observation of chloroplasts in dark conditions and in the absence of CO 2, showed that the artificial electron acceptor was oxidized but not reduced, terminating the process, but without production of oxygen and sugar. This observation allowed Hill to conclude that oxygen is released during the light-dependent steps (Hill reaction) of ...

  5. Photomultiplier tube - Wikipedia

    en.wikipedia.org/wiki/Photomultiplier_Tube

    Fig. 2: Typical photomultiplier voltage divider circuit using negative high voltage. Photomultipliers are typically constructed with an evacuated glass housing (using an extremely tight and durable glass-to-metal seal like other vacuum tubes ), containing a photocathode , several dynodes , and an anode .

  6. Exam - Wikipedia

    en.wikipedia.org/wiki/Exam

    This is an accepted version of this page This is the latest accepted revision, reviewed on 13 January 2025. Educational assessment For other uses, see Exam (disambiguation) and Examination (disambiguation). Cambodian students taking an exam in order to apply for the Don Bosco Technical School of Sihanoukville in 2008 American students in a computer fundamentals class taking an online test in ...

  7. Surface chemistry of paper - Wikipedia

    en.wikipedia.org/wiki/Surface_chemistry_of_paper

    Printing quality is highly influenced by the various treatments and methods used in creating paper and enhancing the paper surface. Consumers are most concerned with the paper-ink interactions which vary for certain types of paper due to different chemical properties of the surface. [8] Inkjet paper is the most commercially used type of paper.

  8. Advanced level mathematics - Wikipedia

    en.wikipedia.org/wiki/Advanced_level_mathematics

    Advanced Level (A-Level) Mathematics is a qualification of further education taken in the United Kingdom (and occasionally other countries as well). In the UK, A-Level exams are traditionally taken by 17-18 year-olds after a two-year course at a sixth form or college.

  9. Talk : Common European Framework of Reference for Languages

    en.wikipedia.org/wiki/Talk:Common_European...

    1. Although the hours it takes to learn E, F, & D are sourced, they are simplistic. For example, a Dutch speaker can learn English much faster than a Hungarian or Finnish speaker, to say nothing of a Japanese speaker. 2. The hours given are cumulative. That should be explicitly stated. 3. There is an unexplained reference to two subdivisions (2 ...