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Class 12th physics notes

@class_12_physics_notes

On this record: Growth · Engagement · Reactions · Posts · Polls · Citations · Telegram's recommendations · Cite this entry

12,220subscribers

-276 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 10,000–31,623.

Register entry

Telegram ID-1001343337330
TypeChannel
Username@class_12_physics_notes
CreatedBetween 1 March 2018 and 31 August 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded6 August 2026
Last confirmed live9 September 2026
Measurements held29
Confirmed unchanged1 time, most recently 9 September 2026
On Telegramt.me/class_12_physics_notes

Growth

12,22012,49612,3586 August 2026 — 12,496 subscribers7 August 2026 — 12,495 subscribers8 August 2026 — 12,491 subscribers9 August 2026 — 12,476 subscribers10 August 2026 — 12,463 subscribers11 August 2026 — 12,452 subscribers12 August 2026 — 12,440 subscribers13 August 2026 — 12,430 subscribers14 August 2026 — 12,407 subscribers16 August 2026 — 12,394 subscribers17 August 2026 — 12,374 subscribers18 August 2026 — 12,356 subscribers19 August 2026 — 12,346 subscribers20 August 2026 — 12,338 subscribers21 August 2026 — 12,332 subscribers23 August 2026 — 12,310 subscribers24 August 2026 — 12,294 subscribers25 August 2026 — 12,291 subscribers26 August 2026 — 12,283 subscribers27 August 2026 — 12,277 subscribers28 August 2026 — 12,273 subscribers29 August 2026 — 12,259 subscribers30 August 2026 — 12,254 subscribers31 August 2026 — 12,251 subscribers1 September 2026 — 12,248 subscribers2 September 2026 — 12,243 subscribers4 September 2026 — 12,231 subscribers6 September 2026 — 12,222 subscribers9 September 2026 — 12,220 subscribers6 August 20269 September 2026
29 measurements spanning 34 days, net -276. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 12,179–12,537 and does not start at zero.
Measurement log — every subscribers count we have recorded, most recent 20 of 29
Measured (UTC)SubscribersChange
9 Sept 2026, 22:0212,220-2
6 Sept 2026, 14:4112,222-9
4 Sept 2026, 03:1712,231-12
2 Sept 2026, 17:1412,243-5
1 Sept 2026, 13:2312,248-3
31 Aug 2026, 15:3412,251-3
30 Aug 2026, 17:0812,254-5
29 Aug 2026, 14:4412,259-14
28 Aug 2026, 17:2812,273-4
27 Aug 2026, 18:1712,277-6
26 Aug 2026, 15:3312,283-8
25 Aug 2026, 17:1512,291-3
24 Aug 2026, 20:4812,294-16
23 Aug 2026, 03:4512,310-22
21 Aug 2026, 12:5312,332-6
20 Aug 2026, 14:4312,338-8
19 Aug 2026, 13:5212,346-10
18 Aug 2026, 10:3412,356-18
17 Aug 2026, 14:0612,374-20
16 Aug 2026, 04:1712,394first reading

Engagement

20 posts held, back to 29 June 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 47 pages of Telegram’s post history, 20 posts per page.

Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 4 August 2026. An engagement rate over an empty window would be a number about nothing.

Reaction mix

6 reactions across 4 posts, in 1 kind.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
6100.0%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 4 of the 20 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 6 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 20 most recent posts we hold, published 29 June 2026 to 4 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

4 Aug 2026, 11:24 UTC≈1,230 views1 reactionsread 2 September 2026

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1

Signed Hello

25 Jul 2026, 18:27 UTC≈1,670 views2 reactionsread 2 September 2026

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2

Signed Hello

24 Jul 2026, 20:40 UTC≈1,590 views1 reactionsread 2 September 2026
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Signed Hello

11 Jul 2026, 15:49 UTC≈1,700 views2 reactionsread 2 September 2026
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2

Signed Hello

3 Jul 2026, 14:38 UTC≈1,640 viewsread 2 September 2026

🎉 Quiz Finished! 🎉 Thank you for participating. Keep learning, keep growing, and come back tomorrow for more questions! Free Premium PDFs: acadpills.com/premium Next quiz Sunday at 20:00

Signed Acadpills.com

3 Jul 2026, 14:37 UTC≈1,490 viewsread 2 September 2026
Poll

Q10/10: Assertion: Macroscopic objects do not show observable wave-like properties. Reason: Their de Broglie wavelength is vanishingly small.

  1. Both A and R are true and R is the correct explanation of A37%
  2. Both A and R are true but R is not the correct explanation of A37%
  3. A is true but R is false14%
  4. A is false but R is true9%
  5. Visit acadpills.com for more3%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:37 UTC≈1,360 viewsread 2 September 2026
Poll

Q9/10: For a given metal, the incident frequency of light is nu. If nu is doubled, the maximum kinetic energy of the photoelectrons:

  1. Doubles16%
  2. Halves40%
  3. Becomes more than double28%
  4. Becomes less than double12%
  5. Visit acadpills.com for more4%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:36 UTC≈1,240 viewsread 2 September 2026
Poll

Q8/10: Which of the following correctly represents the variation of photoelectric current with intensity of incident light?

  1. A parabola15%
  2. A straight line passing through the origin42%
  3. An exponential curve23%
  4. A hyperbola12%
  5. Visit acadpills.com for more8%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:35 UTC≈1,030 viewsread 2 September 2026
Poll

Q7/10: The phenomenon of electron emission from a metal surface due to the application of a strong electric field is called:

  1. Thermionic emission14%
  2. Photoelectric emission31%
  3. Secondary emission34%
  4. Field emission21%
  5. Visit acadpills.com for more0%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:34 UTC991 viewsread 2 September 2026
Poll

Q6/10: If the distance of a point source of light from a photoelectric surface is increased, what happens to the stopping potential?

  1. Increases15%
  2. Decreases26%
  3. Remains constant41%
  4. Alternately increases and decreases15%
  5. Visit acadpills.com for more4%

Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:34 UTC882 viewsread 2 September 2026
Poll

Q5/10: An electron is accelerated from rest through a potential difference of 100 V. What is its de Broglie wavelength?

  1. 1.227 nm4%
  2. 0.1227 nm33%
  3. 12.27 nm29%
  4. 0.0122 nm29%
  5. Visit acadpills.com for more4%

Shares as published, totalling 99%. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

3 Jul 2026, 14:33 UTC799 viewsread 2 September 2026
Poll

Q4/10: Light of frequency 1.5 times the threshold frequency is incident. What will be the photoelectric current if the frequency is halved and intensity is doubled?

  1. Doubled9%
  2. Halved39%
  3. Zero30%
  4. Quadrupled17%
  5. Visit acadpills.com for more4%

Shares as published, totalling 99%. No per-option vote count is published by Telegram, so none is shown.

Signed Acadpills.com

Showing the 12 most recent of 20 posts we hold for @class_12_physics_notes. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Polls

The 6 most recent of 13 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.

3 Jul 2026, 14:37 UTCAnonymous Quiz35 voters

Q10/10: Assertion: Macroscopic objects do not show observable wave-like properties. Reason: Their de Broglie wavelength is vanishingly small.

  1. Both A and R are true and R is the correct explanation of A37%
  2. Both A and R are true but R is not the correct explanation of A37%
  3. A is true but R is false14%
  4. A is false but R is true9%
  5. Visit acadpills.com for more3%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

3 Jul 2026, 14:37 UTCAnonymous Quiz25 voters

Q9/10: For a given metal, the incident frequency of light is nu. If nu is doubled, the maximum kinetic energy of the photoelectrons:

  1. Doubles16%
  2. Halves40%
  3. Becomes more than double28%
  4. Becomes less than double12%
  5. Visit acadpills.com for more4%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

3 Jul 2026, 14:36 UTCAnonymous Quiz26 voters

Q8/10: Which of the following correctly represents the variation of photoelectric current with intensity of incident light?

  1. A parabola15%
  2. A straight line passing through the origin42%
  3. An exponential curve23%
  4. A hyperbola12%
  5. Visit acadpills.com for more8%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

3 Jul 2026, 14:35 UTCAnonymous Quiz29 voters

Q7/10: The phenomenon of electron emission from a metal surface due to the application of a strong electric field is called:

  1. Thermionic emission14%
  2. Photoelectric emission31%
  3. Secondary emission34%
  4. Field emission21%
  5. Visit acadpills.com for more0%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

3 Jul 2026, 14:34 UTCAnonymous Quiz27 voters

Q6/10: If the distance of a point source of light from a photoelectric surface is increased, what happens to the stopping potential?

  1. Increases15%
  2. Decreases26%
  3. Remains constant41%
  4. Alternately increases and decreases15%
  5. Visit acadpills.com for more4%

Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.

3 Jul 2026, 14:34 UTCAnonymous Quiz24 voters

Q5/10: An electron is accelerated from rest through a potential difference of 100 V. What is its de Broglie wavelength?

  1. 1.227 nm4%
  2. 0.1227 nm33%
  3. 12.27 nm29%
  4. 0.0122 nm29%
  5. Visit acadpills.com for more4%

Shares as published, totalling 99%. No per-option vote count is published by Telegram, so none is shown.

Percentages only — there are no per-option vote counts here, because Telegram publishes none. The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.

The shares need not add up to 100. Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.

Read from the 20 most recent posts we hold, published 29 June 2026 to 4 August 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.

Mentions

Named by 2 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Appears in Telegram’s recommendations for other channels

The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.

BIHAR BOARD OUT QUESTION
@BIHAR_BOARD_OUT_QUESTION_Real · 30,370
Telegram ranks this channel #17 of 33 here — alongside 32 others — read 7 September 2026

This channel appears in 1 seed channel's Telegram-generated recommendation list in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 9 September 2026 — this entry's latest reading, not the date you are reading this.

“Class 12th physics notes” (@class_12_physics_notes), 12,220 subscribers as measured 9 September 2026. Telegram Register, tgregister.com/channel/class_12_physics_notes.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.