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Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area, also called the sound power density and the sound energy flux density. [2] The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2).
Punjab Curriculum and Textbook Board was established in 1962 as West Pakistan Textbook Board. [3] Its functions are curriculum development, implementation of educational policies of the Government, publication of textbooks and production of supplementary reading material relating to textbooks. [4]
Board Established City Website Refs Catholic Board of Education, Pakistan: 1961 Karachi [47] Lahore [48] [49] Diocesan board of education, Pakistan 1960 Islamabad, Rawalpindi [50] [51] Presbyterian Education Board Pakistan Lahore, Punjab
The Class VIII (ages 12–13) book (Punjab Textbook Board) on Islamic Studies reads: "Honesty for non-Muslims is merely a business strategy, while for Muslims it is a matter of faith." The Class V (ages 9–10) book (Punjab Textbook Board) on Social Studies says: "Religion plays a very important role in promoting national harmony.
In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. In human physiology and psychology , sound is the reception of such waves and their perception by the brain . [ 1 ]
The Central Board of Secondary Education (CBSE) will now conduct two separate examinations for Mathematics in class 10 board examination starting from 2020 session. The current Mathematics exam is termed as Mathematics (Standard), and an easier version of Mathematics has been introduced, called as Mathematics (Basic).
Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself.
It is also referred to as the Institute of Theoretical Physics. In 2018, it was officially renamed as al-Khazini Department, named after al-Khazini. [1] [2] Established in 1966 with efforts led by Abdus Salam, [3] the institute was located in Rawalpindi, Punjab Province and offered research in mathematics and theoretical physics. [4]