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Olympiad Wallah
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🎯 Olympiad & JEE Prep Channel Your go-to space for: 🔹 NSEC | NSEB | NSEP | NSEA | NSEJS | IOQM 🔹 Advanced Series: Physics, Chem, Bio, Maths 🔹 JEE Excellence & Test Series Stay updated. Stay prepared. Let’s crack it! 💥
Show more📈 Analytical overview of Telegram channel Olympiad Wallah
Channel Olympiad Wallah (@olympiad_wallah) in the English language segment is an active participant. Currently, the community unites 15 144 subscribers, ranking 13 314 in the Education category and 27 872 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 15 144 subscribers.
According to the latest data from 26 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 461 over the last 30 days and by 20 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 15.33%. Within the first 24 hours after publication, content typically collects 5.20% reactions from the total number of subscribers.
- Post reach: On average, each post receives 2 322 views. Within the first day, a publication typically gains 788 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 7.
- Thematic interests: Content is focused on key topics such as champ, revision, aspirant, aaj, olympiadwallah.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“🎯 Olympiad & JEE Prep Channel
Your go-to space for:
🔹 NSEC | NSEB | NSEP | NSEA | NSEJS | IOQM
🔹 Advanced Series: Physics, Chem, Bio, Maths
🔹 JEE Excellence & Test Series
Stay updated. Stay prepared. Let’s crack it! 💥”
Thanks to the high frequency of updates (latest data received on 27 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Education category.
15 144
Subscribers
+2024 hours
+687 days
+46130 days
Posts Archive
15 149
📘 Permutation And Combination Notes are here 🔥
From basic concepts to Olympiad level tricks — everything covered for quick revision 🚀
15 149
📲 Scan the QR Code to Enroll in the FREE IOQM Mega Test 2026!
👉 Click Here to Join the FREE IOQM Mega Test 2026:
https://lp.pw.live/mega-test
15 149
🔍 RAY OPTICS — FORMULA SHEET
🔹 Refractive Index
n = c/v
where,
n = Refractive Index
c = Speed of Light in Vacuum
v = Speed of Light in Medium
🔹 Snell's Law
n₁ sin i = n₂ sin r
🔹 Relative Refractive Index
n₂₁ = n₂/n₁ = v₁/v₂
🔹 Critical Angle
sin C = n₂/n₁
(for n₁ > n₂)
🔹 Mirror Formula
1/f = 1/v + 1/u
🔹 Magnification (Mirror)
m = hᵢ/hₒ = -v/u
🔹 Lens Formula
1/f = 1/v − 1/u
🔹 Magnification (Lens)
m = hᵢ/hₒ = v/u
🔹 Power of a Lens
P = 1/f
(Unit: Dioptre)
🔹 Combination of Thin Lenses
P_eq = P₁ + P₂ + P₃ + ...
🔹 Lens Maker's Formula
1/f = (n − 1)(1/R₁ − 1/R₂)
🔹 Prism Formula (Small Angle)
δ = (n − 1)A
where,
δ = Angle of Deviation
A = Angle of Prism
🔹 Apparent Depth
Apparent Depth = Real Depth / n
🔹 Optical Path Length
OPL = n × d
⚡ OLYMPIAD FACTS
✓ A convex lens has positive focal length.
✓ A concave lens has negative focal length.
✓ A concave mirror has negative focal length.
✓ Total Internal Reflection occurs only when light travels from a denser medium to a rarer medium.
✓ The optical centre of a thin lens does not deviate the ray.
🎯 MUST REMEMBER
n = c/v
n₁ sin i = n₂ sin r
1/f = 1/v + 1/u (Mirror)
1/f = 1/v − 1/u (Lens)
P = 1/f
δ = (n − 1)A
m = -v/u (Mirror)
m = v/u (Lens)
15 149
Hello Champions 🏆🔥
If you understand functions deeply, Counting Principle become much easier 😏⚡️
Time to level up your Olympiad problem-solving skills 🚀
15 149
🚀 IOQM Aspirants, it's time for your BOOSTER DOSE!
Join us LIVE today at 8:00 PM on YouTube for the launch of something designed to give your IOQM preparation the extra edge.
▶️ Join LIVE on YouTube at 8 PM.
https://www.youtube.com/live/R9c7ug1c0LY?si=Kcvl5tV-PoUDz_L9
Be there, stay ahead—because one session can change your entire IOQM journey. 💯
15 149
⚡ CURRENT ELECTRICITY — FORMULA SHEET
🔹 Electric Current
I = Q/t
where,
I = Current
Q = Charge
t = Time
🔹 Drift Velocity
I = nAeVₑ
where,
n = Number density of electrons
A = Cross-sectional area
e = Electronic charge
Vₑ = Drift velocity
🔹 Current Density
J = I/A
Also,
J = neVₑ
🔹 Ohm's Law
V = IR
🔹 Resistance
R = ρL/A
where,
ρ = Resistivity
L = Length
A = Cross-sectional area
🔹 Conductivity
σ = 1/ρ
🔹 Electrical Power
P = VI
P = I²R
P = V²/R
🔹 Electrical Energy
W = VIt
W = I²Rt
W = (V²/R)t
🔹 Cells in Series
E_eq = E₁ + E₂ + ...
r_eq = r₁ + r₂ + ...
🔹 Cells in Parallel (Identical Cells)
E_eq = E
r_eq = r/n
🔹 Resistors in Series
R_eq = R₁ + R₂ + R₃ + ...
🔹 Resistors in Parallel
1/R_eq = 1/R₁ + 1/R₂ + 1/R₃ + ...
🔹 Kirchhoff's Current Law (KCL)
ΣI_in = ΣI_out
🔹 Kirchhoff's Voltage Law (KVL)
ΣV = 0
(For any closed loop)
⚡ OLYMPIAD FACTS
✓ Conventional current flows from positive to negative terminal.
✓ Electrons flow from negative to positive terminal.
✓ Resistivity depends only on the material and temperature.
✓ Current remains the same in a series circuit.
✓ Voltage remains the same across parallel branches.
🎯 MUST REMEMBER
I = Q/t
V = IR
R = ρL/A
P = VI = I²R = V²/R
J = I/A
J = neVₑ
R_series = ΣR
1/R_parallel = Σ(1/R)
These are the most frequently used Current Electricity formulas in Olympiad, JEE, and NEET problems.
15 149
Hello Champions 🏆🔥
Basic Algebraic Manipulation Notes are here 📐
Time to sharpen your Olympiad mindset 🚀
15 149
The measured value of a quantity is (50.0 ± 0.5) cm. The relative error in the measurement is:
15 149
A length is measured as (10.0 ± 0.2) cm and a breadth as (5.0 ± 0.1) cm. The percentage error in the calculated area is:
15 149
📏 ERROR ANALYSIS — FORMULA SHEET
🔹 Absolute Error
ΔA = |Measured Value − True Value|
🔹 Mean Absolute Error
ΔA_mean = (ΔA₁ + ΔA₂ + ΔA₃ + ... + ΔAₙ) / n
🔹 Relative Error
Relative Error = ΔA / A
🔹 Percentage Error
Percentage Error = (ΔA / A) × 100
🔹 Error in Addition
If Z = A + B
ΔZ = ΔA + ΔB
🔹 Error in Subtraction
If Z = A − B
ΔZ = ΔA + ΔB
🔹 Error in Multiplication
If Z = A × B
ΔZ / Z = ΔA / A + ΔB / B
🔹 Error in Division
If Z = A / B
ΔZ / Z = ΔA / A + ΔB / B
🔹 Error in Power
If Z = Aⁿ
ΔZ / Z = n(ΔA / A)
🔹 General Error Formula
If Z = AᵖBᑫ / Cʳ
ΔZ / Z = p(ΔA/A) + q(ΔB/B) + r(ΔC/C)
🔹 Significant Figures
• All non-zero digits are significant.
• Zeros between non-zero digits are significant.
• Leading zeros are not significant.
• Trailing zeros after decimal are significant.
🎯 MUST REMEMBER
Δ(A ± B) = ΔA + ΔB
Δ(AB)/(AB) = ΔA/A + ΔB/B
Δ(A/B)/(A/B) = ΔA/A + ΔB/B
Δ(Aⁿ)/Aⁿ = nΔA/A
15 149
⚡ CAPACITORS — FORMULA SHEET
🔹 Capacitance
C = Q/V
where,
C = Capacitance
Q = Charge
V = Potential Difference
🔹 Unit of Capacitance
1 Farad (F)
1 F = 1 C/V
🔹 Parallel Plate Capacitor
C = ε₀A/d
where,
ε₀ = Permittivity of Free Space
A = Area of Plates
d = Separation Between Plates
🔹 Capacitor with Dielectric
C = Kε₀A/d
where,
K = Dielectric Constant
🔹 Energy Stored
U = ½CV²
U = ½QV
U = Q²/(2C)
🔹 Electric Field Between Plates
E = V/d
🔹 Charge Stored
Q = CV
🔹 Capacitors in Series
1/Ceq = 1/C₁ + 1/C₂ + 1/C₃ + ...
For Series:
✓ Charge remains same
✓ Voltage divides
🔹 Capacitors in Parallel
Ceq = C₁ + C₂ + C₃ + ...
For Parallel:
✓ Voltage remains same
✓ Charge divides
🔹 Dielectric Effect
Capacitance Increases K Times
C' = KC
🔹 Force Between Plates
F = ½ ε₀A(V/d)²
15 149
Hello Champions 🏆🔥
Modular Arithmetic Notes are LIVE 🔥✨
Time to spot patterns and think like a true Olympiad problem solver 🧠🚀
Let's build stronger mathematical intuition, one step at a time! 💯
15 149
⚡ KINETIC ENERGY — FORMULA SHEET
🔹 Kinetic Energy (KE)
KE = ½mv²
where,
m = mass
v = velocity
🔹 Work-Energy Theorem
W = ΔKE
W = KE₂ − KE₁
🔹 Translational Kinetic Energy
KE = ½mv²
🔹 Rotational Kinetic Energy
KE = ½Iω²
where,
I = moment of inertia
ω = angular velocity
🔹 Total Kinetic Energy (Rolling Motion)
KE = ½mv² + ½Iω²
🔹 Relation Between Momentum and Kinetic Energy
KE = p²/2m
where,
p = momentum
🔹 Velocity in Terms of Kinetic Energy
v = √(2KE/m)
🔹 Momentum in Terms of Kinetic Energy
p = √(2mKE)
🔹 Change in Kinetic Energy
ΔKE = ½m(v₂² − v₁²)
🔹 Average Power
P = ΔKE/t
15 149
Hello Champions 🏆🔥
Arithmetic Functions Notes are here 📊✨
Time to connect concepts like a true Olympiad champ 🚀
15 149
Good Morning Champions! ☀️
Welcome back! Telegram is finally active again. 🎉
Thank you for being with us during this time and for all the support you've shown. It really means a lot.
We're back, and so are the updates, learning, and daily motivation.
Let's keep moving forward together! 🚀
