list of important formulas and concepts from the Class 10 chapter Light 1. Mirror Formula: 1/f = 1/v + 1/u 2. Magnification (Mirror): m = h₂/h₁ = -v/u Where: h₂ = Height of image h₁ = Height of object v = Image distance u = Object distance 3. Lens Formula: 1/f = 1/v - 1/u 4. Magnification (Lens): m = h₂/h₁ = v/u 5. Power of Lens: P = 100 / f (in cm) = 1 / f (in meters) Where: P = Power in diopters (D) f = Focal length in meters 6. Refraction Formula (Snell's Law): n₁sin(i) = n₂sin(r) Where: n₁ = Refractive index of medium 1 n₂ = Refractive index of medium 2 i = Angle of incidence r = Angle of refraction 7. Refractive Index: n = c/v Where: c = Speed of light in vacuum v = Speed of light in the medium 8. Lens Maker's Formula: 1/f = (n - 1) [(1/R₁) - (1/R₂)] 9. Critical Angle and Total Internal Reflection: sin(C) = 1/n Where: C = Critical angle n = Refractive index of the medium 10. Relation Between f and R (Spherical Mirrors): f = R/2 I HOPE THIS WOULD HELP
Bhai ji yah surprise bahut best laga really thanku bhai ji mene abhi tak sab padh liya but jese time ja rahe hai me sab bhul rahi hu isliye yah surprise best hai
Sir you are the best teacher in the world. mai sir pe आंख band kar ke bhorasa karta hu app log bhi sir ko jayada se jyada subscribe kare aur sir pe bharosa rakho ok😊😊😊
Sir me apna 100% dene ke kiye ready hu 😤✔️ ....but mere 9 jan se 2nd pre board suru ho rhe 20 tak....aur mera 40 % kuch hua hai .....aur mam ne doo , char baat sunaya tha 1st pre board ache nahi gye too....muze bhi bta hai ki pre board ke marks se koi utna tension nhi lena .....but what I do now 😢 .. please tell me
Waiting for the one shot series sir lekin acche detail Main toh honge na lectures or uper se only 1 hour main acche se chapters ho jayenge atleast 1 hour 30 min ki toh lecture hona chahiye but sir ek doubt lectures recorded honge ya live or bilkul free honge na lectures
Bhaiya mene book order kardiya Tum jo bole vo karke dikaunga Please artificial intelligence ka important questions bathadho, mei aapke upar bahut yekin raka hu❤❤❤❤❤❤
Sir din Mai *quality* tareeka sai 7+ hours regularly padhta hu. Maths, science, sst mai mujhe bharosa hai Feb aate aate full marks aane ka chance hai. Lekin language subject mai pichle 1 hafte sai kar kar ke thak gya hu lekin fir v bohot mistakes hote hai. But shayad Feb aate aate ye v thik ho jae
Class 10th Telegram Channel Link - t.me/class10clan
Thanks bhaiya for guiding us 🙏🏻🙏🏻
Planner aaya kaha h sir
Thank you so much sir
Bhaiya me gseb bord se hu to app jo science ka shot video dalyega us me gseb ka imp bhi batyega pls Bhaiya
@@GauravSuthar bhaiya planner fill kere dido
I wish sabke ache percentage aaye...😊❤
Thanks bhai❤❤❤
thank you so much ❤
Thanks 😊
Kash
Ji
Bords ki Kasam jisne comment like nahi kiya vo bords exam ma Fail 😂😂(don't take risk) 💀💀
👍🏻
@Bilal-h6d3wsahi kaha bhai😂
I'll take risk bro because I like taking risk.😅😅😅
❤👍
Dalinder jabardasti like mang raha hai
list of important Class 10 Maths formulas.
1. Quadratic Equations:
x = (-b ± √(b² - 4ac)) / 2a
2. Arithmetic Progression (AP):
n-th term: aₙ = a + (n - 1)d
Sum of n terms: Sₙ = (n / 2) [2a + (n - 1)d]
3. Triangles:
Similarity condition: a²/b² = c²/d²
Pythagoras theorem: a² + b² = c²
4. Coordinate Geometry:
Distance: d = √((x₂ - x₁)² + (y₂ - y₁)²)
Midpoint: M = ((x₁ + x₂) / 2, (y₁ + y₂) / 2)
Area of triangle: Area = 1/2 [x₁(y₂ - y₃) + x₂(y₃ - y₁) + x₃(y₁ - y₂)]
5. Trigonometry:
sin θ = Opposite / Hypotenuse
cos θ = Adjacent / Hypotenuse
tan θ = Opposite / Adjacent
Identities:
1. sin²θ + cos²θ = 1
2. 1 + tan²θ = sec²θ
3. 1 + cot²θ = csc²θ
6. Circles:
Length of tangent: √(r² - d²), where r is the radius and d is the distance from the center to the external point.
7. Surface Areas and Volumes:
Sphere:
Surface area = 4πr²
Volume = (4/3)πr³
Cylinder:
Surface area = 2πr(h + r)
Volume = πr²h
Cone:
Surface area = πr(l + r)
Volume = (1/3)πr²h
8. Probability:
P(E) = (Number of favorable outcomes) / (Total outcomes)
9. Statistics:
Mean: Mean = Σfᵢxᵢ / Σfᵢ
Median: Median = L + [(N/2 - CF) / f] × h
Mode: Mode = L + [(f₁ - f₀) / (2f₁ - f₀ - f₂)] × h
I HOPE THIS HELPS
Thx ❤❤❤❤
Thanks bahi
Sir 80% syllabus hai complete
Maths 100%
Science all last 3 chapter remain
SST 5 chapter remain
congrats bro!!🎉🎉
mera to kuchh nahi hua hai
From where you studied maths plss tell😢
@StateTopper-k2r dw bro
@@DEMOS_GAMING_443 try Oswaal
Ho gya 🎉
list of important formulas and concepts from the Class 10 chapter Light
1. Mirror Formula:
1/f = 1/v + 1/u
2. Magnification (Mirror):
m = h₂/h₁ = -v/u
Where:
h₂ = Height of image
h₁ = Height of object
v = Image distance
u = Object distance
3. Lens Formula:
1/f = 1/v - 1/u
4. Magnification (Lens):
m = h₂/h₁ = v/u
5. Power of Lens:
P = 100 / f (in cm) = 1 / f (in meters)
Where:
P = Power in diopters (D)
f = Focal length in meters
6. Refraction Formula (Snell's Law):
n₁sin(i) = n₂sin(r)
Where:
n₁ = Refractive index of medium 1
n₂ = Refractive index of medium 2
i = Angle of incidence
r = Angle of refraction
7. Refractive Index:
n = c/v
Where:
c = Speed of light in vacuum
v = Speed of light in the medium
8. Lens Maker's Formula:
1/f = (n - 1) [(1/R₁) - (1/R₂)]
9. Critical Angle and Total Internal Reflection:
sin(C) = 1/n
Where:
C = Critical angle
n = Refractive index of the medium
10. Relation Between f and R (Spherical Mirrors):
f = R/2
I HOPE THIS WOULD HELP
Esa surprise koi koi hi free me deta hai gourav sir rocked 🤩🤩🤩🤩🤩❤❤❤❤
Sahi me ❤❤❤❤
*M yaha dekhne aai thi ki kon-kon motivate hogaya...pr yaha to "like nhi to fail " ye sb chal rha hai yrr 😂!!*
@Bilal-h6d3w mtlb aap nhi hue??
Sis Gl Let's go
Biggest surprise of new year 🎉🎉
Thank you so much sir
Happy new year everyone in advance 🎉🎉🎉😊😊😊😊😊
Thank you so much sir 😊😊😊❤❤❤😊😊😊😊❤❤❤❤
Koun Koun 450+ Lana chahta hai 2025 me
Me
Mein 480
Mein bhi 😢😊490\500
Matlab 90%
Suprise ne to dil garden garden kar diya thankyou so much sir abhi maga ayaga ❤❤
Thank you Bhai 🤗🤗
We are ready❤
Thankyou sir for providing classes free of cost. ❤❤❤❤❤
Boards ki kasam jisne like nhi woh pakka exam mai fail 💀💀💀
Sir you are great thanks for helping us for- khatam series❤❤❤❤❤❤
Thanks bhaiya 😢😢😢😢😢😢
To motivate me all
12:32 Most important question please
Bhaiya hindi mein weak hu....
Ab kya karu....
Sir jaldi rapid revision upload karo ❤️❤️
1 like=99 in boards❎
Hardwork and consistency=99% in boards✅🗿
Maja a gaya sir wahhhhh🎉🎉🎉🎉🎉 thank you sir so much❤❤❤❤
Thank you sir I hope you will help us to score good marks for our board
All the best
सबसे अटल सबसे 4:01 4:02 4:04 4:05 4:06 4:06 4:06 4:07 4:07 4:07 4:07 4:07
Good motivation video bhaiya 😊
Boards ki kasam jisne subscribe nhi kiya wo exam me fail😂😂 (Don't Take Risk)💀☠️ . , . .
Bhai tu hr jgh aa jata h 😂
Bhaiya Aap Great ho. And aap hamare liye aap sab kuch karte ho bhaiya aapko mere Bahu bahut dhanyawad he. Aaj Tak koi ase roadmap nhi btata.
Thank you for video.....😊
Welcome 😊
Bhaiya khatam series m ncert bhi kra Dena please ❤❤❤❤
Ok
Sir it code 402 ke liye kuch karaye please.
formula sheet telegram par nahi mili sir
Surprise bahut achcha laga 🎉❤
Thanku for khatam series❤❤❤❤
Ok bhaiya❤❤
Bhai ji yah surprise bahut best laga really thanku bhai ji mene abhi tak sab padh liya but jese time ja rahe hai me sab bhul rahi hu isliye yah surprise best hai
Sir aap chinta mat karo apki aur hamari mehnat kabhi kharab nahi hogi thank you sir for everything you are providing for us 🙏❤️
Like this video please make for class 9th please 🙏🏻🙏🏻
Sir yea question bank maa only question haa kiya😢
Vote for next video on rule of 2025
Bhoot badiya ha ha ap hamara liya kitni mahnaat krta h love u sir ❤
thank U sir ❤🎉for khatam series
Sir this surprise is the best
Thank you so much sir for your support
thanks for the series bhaiya
Thank you soo much sir❤😊
😊😊😊Thank you bhaiya thank you so much ☺️🙂🙂
I will follow this
I am Coming from Kerala PATHANAMTHITTA
Wow 🎉such a nice surprise
Thank you 🤗
8:59 "narak me alg se jagah bani hui h" was epic😅😂😆
Hlo sir mai abhi tan kuch nahi padha hu koi tric bate de kise dusre short video mai pls
Pyq kis website se kare please koi website suggest kijiye
Thank you sir 😊
Sir you are the best teacher in the world.
mai sir pe आंख band kar ke bhorasa karta hu app log bhi sir ko jayada se jyada subscribe kare aur sir pe bharosa rakho ok😊😊😊
Sir 92% sylaanus c9mpleted
Thank you ❤
Bhai mee apka guess paper karidhu ya nahi kyuki 90% paper ncert se atha he naa
Thank you so much bhaiya ❤️
Always welcome
Super excited for one shot 😆
Thx bhai 😅
Bahut bhadiya 👍👍
Sir me apna 100% dene ke kiye ready hu 😤✔️ ....but mere 9 jan se 2nd pre board suru ho rhe 20 tak....aur mera 40 % kuch hua hai .....aur mam ne doo , char baat sunaya tha 1st pre board ache nahi gye too....muze bhi bta hai ki pre board ke marks se koi utna tension nhi lena .....but what I do now 😢 .. please tell me
Sir 417 ai ke liye sir kuchh laye
Sir PYQ ki pdf pe
Thank bhaiya ❤
Waiting for the one shot series sir lekin acche detail Main toh honge na lectures or uper se only 1 hour main acche se chapters ho jayenge atleast 1 hour 30 min ki toh lecture hona chahiye but sir ek doubt lectures recorded honge ya live or bilkul free honge na lectures
Thnku sir
Bhaiya You are a super hero of class 10th students. I really love you sir ❤
Sir Mai Puri NCERT book nahi padh sakta kya karu
Bhaiya me GSEB BOARD wala hu mujhe bhi koi book bata dijiye please 🙏 😢❤❤❤❤❤❤😢😢😢😢
Sir please formula sheet topper clan app PE dal dijiye
Believe in yourself and your abilities.Good luck on your exams....❤️✨
Ok bhaiya thank you❤
Thank you bhaiya❤❤❤❤❤
Andi sandi mandi jisne like nahi kiya vo exam main fail😅😅
Bhaiya kaab aayegi video 📷📸📸
Very nice Bhai ❤❤❤❤❤❤❤
Sir 50 pyq can I do it from ur app?
Sir computer information technology code 402 bhi include kar lo sir
Sir ma to ncert Hindi medium sa hu hamare liay bee one short lecture be laiy
Love you so much brother ❤️ 💙 ♥️
Bhaiya rapid short ki timming kya hogi
Bhaiya syllabus karne ke baad
February se pehle 10 din kya karna hai bata do.
Sample Papers
Aur bhaiya exam ke beech me jo holidays he usme kya kare.
Gap days ke liye video aega@@gamingworld6540
Sir formula sheet aa nhi rhi
Wow sir ❤
Kon kon board 2025 fodega with 98%
Mein
Mein. Kareunga
Very congratulations 🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉 Bhai
Bhaiya mene book order kardiya
Tum jo bole vo karke dikaunga
Please artificial intelligence ka important questions bathadho, mei aapke upar bahut yekin raka hu❤❤❤❤❤❤
Teacher❌ Pyare Bhaiya✅✅✅✅✅😊😊😊😊😅❤❤❤❤❤
I score 99.99% percent in CBSE class 10 delhi state topper
Through which type of resources you did it di?
Sir you are the best teacher
Bhaiya main aaj Kasam khata hu ki apne parents ki khushi ke liye 100/100 leke aaunga 😡😡😡😡😡😡😡
Wah Bhai
Bahut accha
Sir Formula Sheet Bhejdo!
Class 9 science chapter 1 please bhaiya.💓😔
Sir rocked🎉
I will follow this challenge ❤
Yess!! W'll do🎉
3:24
Sir din Mai *quality* tareeka sai 7+ hours regularly padhta hu. Maths, science, sst mai mujhe bharosa hai Feb aate aate full marks aane ka chance hai. Lekin language subject mai pichle 1 hafte sai kar kar ke thak gya hu lekin fir v bohot mistakes hote hai. But shayad Feb aate aate ye v thik ho jae
Sir class 10 biology chemistry physics maths ya sab. Upload kara 😢😢😢😢😢 please
Sir science ki video bana do jisme kiya kiya aayega Or chapter
Wise kitne no ka hai
3:24😏😂💞💞😂😂😂😂💞💞💞💞💞🫰😂😂😂