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The SSC exam plays a vital role in the educational system of Bangladesh. Students who pass the SSC exam are eligible to pursue higher secondary education, which is the prerequisite for university admission. SSC results also serve as a foundation for career opportunities in various fields, such as engineering, medical, and business. [10]
The Education and Literacy Department is a key division of the Government of Sindh, Pakistan, responsible for overseeing the provincial's education system.Its primary role is to manage educational affairs within Sindh and coordinate with the Federal Government and donor agencies to promote education.
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer .
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 ]
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).
Dayaram Jethamal Sindh Government Science College, [1] (Urdu: ڈی جے سندھ گورنمنٹ سائنس کالج) commonly known as DJ Science College, is a public community college that is affiliated with the Board of Intermediate Education Karachi and the University of Karachi — it is located near Burns Road in Karachi, Sindh, Pakistan. [2]
The horizontal axis shows frequency in Hertz. In acoustics, loudness is the subjective perception of sound pressure.More formally, it is defined as the "attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". [1]
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