Author Archives: Shah Jamal - Page 654

Determination of focal length of a convex lens

The focal length of an optical system is a measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long…
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Comparison of e.m.f. of two cells by Potentiometer

A potentiometer measuring instrument is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of the same principle, hence its name. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. Potentiometers operated by a mechanism can be used as position transducers, for example,…
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NCTB Book

Class Three NCTB Book 2014 Download

National Curriculum and Textbook Board commonly known as NCTB, the largest State owned Publishing House of the world is responsible for the total supply of Textbooks for millions of learners, School beginners to Pre-University level learners of the country. This huge National Institution has four campuses. The Book has not been changed from 2013 The…
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NCTB Book

Class Four NCTB Book 2014 Download

National Curriculum and Textbook Board commonly known as NCTB, the largest State owned Publishing House of the world is responsible for the total supply of Textbooks for millions of learners, School beginners to Pre-University level learners of the country. This huge National Institution has four campuses. The Book has not been changed from 2013 The…
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NCTB Book

Class Five NCTB Book 2014 Download

National Curriculum and Textbook Board commonly known as NCTB, the largest State owned Publishing House of the world is responsible for the total supply of Textbooks for millions of learners, School beginners to Pre-University level learners of the country. This huge National Institution has four campuses. The main campus stations its Head office in a…
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NCTB Book

Class Six NCTB Book 2014 Download

National Curriculum and Textbook Board commonly known as NCTB, the largest State owned Publishing House of the world is responsible for the total supply of Textbooks for millions of learners, School beginners to Pre-University level learners of the country. This huge National Institution has four campuses. The main campus stations its Head office in a…
Continue Reading »