science

ݨ

ݨ is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand ݨ rather than just read about it. In short: ݨ, (Arabic letter noon with small tah (U+0768), ṇūṇ), is an additional letter of the Arabic script, not used in the Arabic alphabet itself but used in Shahmukhi Punjabi, and Shina to represent a retroflex nasal consonant, [ɳ]. ڼ is the twenty-ninth letter of Pashto alphabet. It represents the retroflex nasal letter (IPA: [ɳ]) or Ṇ in Latin Alphabets, which is ण in Devanagari and ਣ in Gurmukhi.

ݨ — main illustration — ݨ — illustration

Key takeaways

ݨ belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect ݨ to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of ݨ from memory before moving on to harder problems.

Reference excerpt

ݨ, (Arabic letter noon with small tah (U+0768), ṇūṇ), is an additional letter of the Arabic script, not used in the Arabic alphabet itself but used in Shahmukhi Punjabi, and Shina to represent a retroflex nasal consonant, [ɳ]. ڼ is the twenty-ninth letter of Pashto alphabet. It represents the retroflex nasal letter (IPA: [ɳ]) or Ṇ in Latin Alphabets, which is ण in Devanagari and ਣ in Gurmukhi. In Sindhi, ڻ is used.

The Unicode for the letter ݨ was approved in 2005 and is used since version 4.1. Shahmukhi uses the letter ⟨ݨ⟩ for /ɳ/. Previously, ڑن was used to represent a voiced retroflex nasal. It is a compound of nūn and ṛe ⟨ڑ⟩, for example:

کݨ مݨ، چھݨ چھݨ۔

Forms

Nastaliq Along with Naskh, this letter is also supported in the Nastaliq font.

Illustrations

Worked examples

Example 1 — a first encounter with ݨ

Start with the simplest possible case. Write down what ݨ claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to ݨ before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about ݨ ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of ݨ

In research: ݨ appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses ݨ in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: ݨ is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arabic language stubs, Arabic letters, Writing system stubs, so understanding it makes those chapters shorter.
In everyday life: Look for ݨ outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study ݨ in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what ݨ means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain ݨ out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is ݨ in simple terms?

Why does ݨ matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study ݨ?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on ݨ.

ݨ