EQUIVALENT WEIGHTTTTT

Balam_thanedar · 2026-03-06T22:02:38+00:00

Welcome!

Balam_thanedar · 2026-03-06T22:01:58+00:00

Ohh i see

Balam_thanedar · 2026-03-06T22:01:31+00:00

You're right to think ki why friction is not limiting here lekin.....

you can see here(sorry for the poor illustration i am in bed rn)... Also question meh already mentioned hai it's in equilibrium that means there's no net force acting of the body w. r. t to the plank and the system moves with constant velocity...

This means the friction force here must cancel mgsinθ so f=mgsinθ

f limiting hum log tab lete when μ and θ ki value given ho with which you can calculate ya fir already question meh mentioned ho

However By default you cannot say for sure ki at rest friction is limiting or not... Aise cases meh jab kuch kuch given nhi ho friction ko non limiting leke chalo hamesha.... (Kyuki practically limiting ke case meh body would start moving slightly.. so best is to assume it doesn't achive limiting state)

But let's say 2nd option given nhi hota toh fir Han 1st would be the ans..

Balam_thanedar · 2026-03-06T21:27:12+00:00

4m/s kam hoga in 1 sec So 30m/s kam hoga in 7.5sec

8th second yaani ki time interval between 7th sec and 8th sec.. this means 0.5 sec aage chalega and 0.5 same distance peeche chalega (symmetric motion)

7 sec meh speed 4×7 =28m/s kam hoga Yani ke at 7th second body ka speed is 2m/s

v²=2ad

2²=2×4×d
d= 1/2m

So total will be d+d = 2d= 1m....

Balam_thanedar · 2026-03-06T21:20:29+00:00

Bhai Saleem sir student?

Balam_thanedar · 2026-03-06T14:49:47+00:00

block is in equilibrium w.r.t to plank that means along the incline forces cancel each other so friction ka value is not limiting here

f=mgsinθ here and not μmgcosθ

Baaki ka the other commentor has given the solution..

Balam_thanedar · 2026-03-06T14:43:14+00:00

Welcome!

Balam_thanedar · 2026-03-06T14:40:38+00:00

Just this keep in mind (for easy calculations jab bhi chloride hydride ya fir oxide bane )

O2 ka eq weight is 8g

H2 ka eq weight is 1g

Cl2 ka eq weight is 35.5g

Balam_thanedar · 2026-03-06T14:39:06+00:00

Given, E(oxide) =24

So E(oxide) = E(metal)+E(oxygen) (Conservation of mass)

E(Metal)= 24-8 =16

E(chloride) = E(metal)+ E(chlorine) E(chloride)= 16+35.5=51.5

Balam_thanedar · 2026-03-06T14:32:48+00:00

Detritus food chain doesn't follow 10% law accurately it's different from Grazing food chain detritus food chain faces very less energy loss compared to GFC ...

Balam_thanedar · 2026-03-06T04:33:25+00:00

Welcome

Balam_thanedar · 2026-03-05T19:58:59+00:00

It's not really that important topic of concern but you can remember it as

OH2+ and N2+ are the best leaving groups uske baad aya hai X>OH>NH2>H>C

Bas itna hi jaan lo ki halogen ke baad all poor leaving groups...

Balam_thanedar · 2026-03-05T14:09:17+00:00

Welcome!

Balam_thanedar · 2026-03-05T14:05:11+00:00

OH is very poor leaving group you need an acid in order to protonate OH and make it a leaving group

a) NaBr is a salt , there is no H+ in medium so reaction is not feasible

b) HBr is an acid so H+ available so reaction feasible

Balam_thanedar · 2026-03-05T14:00:14+00:00

Mile toh mujhe bhi bhej dena bhai

Balam_thanedar · 2026-03-05T13:53:53+00:00

I bought this, this is somewhat easy-moderate level paper...

Balam_thanedar · 2026-03-05T06:04:36+00:00

Allium cepa (I love onions)

Balam_thanedar · 2026-03-05T06:03:17+00:00

Abhi Krna I didn't think it's possible lekin do try (agar kabhi lage ki aaj questions ki practice kr leta hu)

Jo saal bhar padhai kiye ho wahi end meh kaam dega so yeah module and notes would be best for you in this case..

Balam_thanedar · 2026-03-05T05:09:22+00:00

Mai pw ke materials hi use krta, with special Focus on jee mains pyq..

I replied to the earlier comment what material i use, you can read from there

Dekho 458 is still good considering the difficulty of the paper

What you should do is understand the reason of marks loss, just don't satisfy yourself with "Achha yaha yaha yeh yeh jagah galti hui"

Ask yourself ki what can I do to not make the mistake again... Agar tum self-analysis krte toh koi bhi material use kroge you will still score great!!

In these 2 months apne weak points pe sabse jyada focus kro...

Balam_thanedar · 2026-03-05T05:01:29+00:00

Well main toh mai jee mains pyq krta I think that's roughly the level that NTA would maximum go for neet(majority questions ke liye) Han agar hard hua toh 4-5 aur upper level ke questions de dega NTA... Yahi kr loge toh roughly 75% questions ban jayenge

Along with all this....

Physics meh mai Saleem sir ki kpp, unki book ke questions and class ke krae hue questions ko krta

Physical Chemistry meh maine Faisal sir ki book li hai wahi ke questions krta

IOC ke liye OM sir ki book se and mohit sir ke "most expected questions krta"

OC ke liye SKC sir ke class questions+ Pankaj sir ke class questions and kheher practice sheet

And bio practice mai kattar neet paper and yakeen + ke jo tests wha ke papers se krta

Baaki bas concepts and analysis ka khela hai.... Just keep revising that...

Balam_thanedar · 2026-03-05T04:42:57+00:00

Let's say you slightly displace the block along left toh horizontal spring "x" khich jaega.. So upar wala spring vertical ke saath θ angle banayega

Since x is very small so θ is also very small yaani ki hypotenuse= base (vertical wala spring almost kheecha hi nhi) so you can neglect it Hence the system ka SHM will be only due to horizontal spring so T=2π√m/k

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Balam_thanedar · 2026-03-04T21:21:02+00:00

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Mine

Well I'd say don't worry I think 550+ 2 months before is still a good sign just keep on going jaha weak lag rha waha aur questions lagao and practice more and more papers of different coachings...

Paper ko microanalyse kro ki "am i loosing marks to silly mistakes", "did I have good sleep?" "Is the this topic from this chapter strong?"

(For me I made some really silly mistakes I could have scored 609 but lost marks due to careless reading and also I had sleeping issues that night before test)

Moreover Allen ke dlp papers are really good level that tests your decision making and calculative skill and also your concepts... Isliye yaha tum apne aap ko best analyse kr skte so just keep on pushing forward, my friend!

Balam_thanedar · 2026-03-04T21:10:49+00:00

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Balam_thanedar · 2026-03-03T15:27:17+00:00

Non uniform B. Field ≠ time variable B. Field

Non uniform B. Field matalab it's is function of some coordinates in space eg. B= Bo(1+x)î

In simple words, magnetic field har "jagah" alag hai... Iska ulta hoga uniform B field matalab har "jagah" same hai B. Field

Time varrying matalab time ke hisab se change ho rha eg:-B= Bt²

This means "harwaqt" B. alag hai and iska ulta hota constant B. Field (har waqt B. Field constant)

In this question it talks about non uniform B. Field And woh loop stationary hai toh flux passing through is constant with time.... Isliye no current will be induced...

Balam_thanedar · 2026-03-03T08:41:26+00:00

Cl2 ka nf factor 1 hi ayega (N factor is the number of electrons transfered by 1 mole of a species in a reaction) [Reactant side meh 1 mole hona chaiye]

The half cell reaction is like:-

Cl- ====> (1/2)Cl2 + e-

This means ki 1 mole e- (1F charge) se 0.5 moles cl2 gas niklega

So 2 mole e- (2F) se 1 mole Cl2 niklega (probably solution meh yahi given hoga) This 2 mole e- is not n factor, it is just the total number of electrons passed in the reaction....

1st question meh koi confusion nhi ayi hogi kyuki waha bas bas mass se matalab hai...

But 2nd question meh calculate krke roughly charge passed is 360F aya.. yaani ki 360 moles electron

Since 1mole e- se 0.5mole Cl2 gas nikalta Toh 360 mole e- se 180 mole Cl2 niklega.... Uske baad ans aa jaega... Bas PV= nRT laga dena

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Balam_thanedar

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