PhyLab-Educate

Solution to ISC 2020 Physics Board Paper

2021-02-05T11:42:00.002+05:30

Notes on Nuclear Reactor

2020-12-11T09:10:00.002+05:30

Notes on Nuclear Physics (Nuclear Binding Energy, Disintegration Energy, Binding Energy Curve, Pair Production and Pair Annihilation)

2020-12-11T09:07:00.002+05:30

Notes on Atomic Physics (Bohr's Atomic Model)

2020-12-11T09:04:00.003+05:30

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Nots on Semiconductor and Semiconductor Devices (PN junction Diodes, Rectifiers, LED, Solar Cells and Photo Diodes)

2020-12-02T08:39:00.005+05:30

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Optical Instrument | Simple Microscope, Telescope and Compound Microscope

2020-11-22T11:02:00.004+05:30

In this video lecture series, you will find lecture videos on "OPTICAL INSTRUMENTS"...These videos will help you all to revise the topics associated with optical instruments... Hope you find them useful...

Refraction and Dispersion of Light through a Prism

2020-10-12T12:04:00.007+05:30

Solution to some Numerical Problems based on REFRACTION BY PRISM...

Kindly note that the Q.No mentioned in the solution below may not directly correlate with the Q.No given in your text book, because of printing edition variation. Please correlate the same with Answer and values mention in the problem...

>>> Solution to some Numerical Problems based on REFRACTION BY PLANE INTERFACE...

🔔Chapter: Huygen's Law

🔔Chapter: Refraction at Plane Surfaces

Q.1) Chapter 17

Q.7) Chapter 17

Q.10) Chapter 17

Q.12) Chapter 17

Q.14) Chapter 17

Eddy Current and its Applications

2020-09-24T19:00:00.006+05:30

Lecture Notes on Transformers

2020-09-20T22:32:00.003+05:30

Class 11 : Chapter 6) Numerical Solution from Nootan ISC Physics | Newto...

2020-09-19T13:12:00.001+05:30

Derivation for Expression of Potential Energy For Capacitors

2020-07-01T10:13:00.002+05:30

In this video podcast we are going to study derivation for expression of potential energy for a capacitor.

This topic of today is very important from the view of Boards. Specifically the part where we go for defining and deriving for expression of energy density of a parallel plate capacitor...kindly take a note for the very same..
In the last part of the video u find that several questions have been asked to u...please pause the video at that very point...n try to answer them in ur copies...

Practice well this particular derivation...[3 Marks]

Comphrensive List of Formulae and Dimensional Formulae of Physical Quantities

2020-05-17T13:02:00.004+05:30

1. (α+в)²= α²+2αв+в²
2. (α+в)²= (α-в)²+4αв
3. (α-в)²= α²-2αв+в²
4. (α-в)²= (α+в)²-4αв
5. α² + в²= (α+в)² - 2αв.
6. α² + в²= (α-в)² + 2αв.
7. α²-в² =(α + в)(α - в)
8. 2(α² + в²) = (α+ в)² + (α - в)²
9. 4αв = (α + в)² -(α-в)²
10. αв ={(α+в)/2}²-{(α-в)/2}²
11. (α + в + ¢)² = α² + в² + ¢² + 2(αв + в¢ + ¢α)
12. (α + в)³ = α³ + 3α²в + 3αв² + в³
13. (α + в)³ = α³ + в³ + 3αв(α + в)
14. (α-в)³=α³-3α²в+3αв²-в³
15. α³ + в³ = (α + в) (α² -αв + в²)
16. α³ + в³ = (α+ в)³ -3αв(α+ в)
17. α³ -в³ = (α -в) (α² + αв + в²)
18. α³ -в³ = (α-в)³ + 3αв(α-в)

Results and Formulae from Trigonometry
ѕιη0° =0
ѕιη30° = 1/2
ѕιη45° = 1/√2
ѕιη60° = √3/2
ѕιη90° = 1

тαη0° = 0
тαη30° = 1/√3
тαη45° = 1
тαη60° = √3
тαη90° = ∞

ѕє¢0° = 1
ѕє¢30° = 2/√3
ѕє¢45° = √2
ѕє¢60° = 2
ѕє¢90° = ∞

» ѕιη²Θ+¢σѕ²Θ=1
» ѕє¢²Θ-тαη²Θ=1
» ¢σѕє¢²Θ-¢σт²Θ=1
» ѕιηΘ=1/¢σѕє¢Θ
» ¢σѕє¢Θ=1/ѕιηΘ
» ¢σѕΘ=1/ѕє¢Θ
» ѕє¢Θ=1/¢σѕΘ
» тαηΘ=1/¢σтΘ
» ¢σтΘ=1/тαηΘ
» тαηΘ=ѕιηΘ/¢σѕΘ

1. ѕιη2α = 2ѕιηα¢σѕα
2. ¢σѕ2α = ¢σѕ²α − ѕιη²α
3. ¢σѕ2α = 2¢σѕ²α − 1
4. ¢σѕ2α = 1 − ѕιη²α
5. 2ѕιη²α = 1 − ¢σѕ2α
6. 1 + ѕιη2α = (ѕιηα + ¢σѕα)²
7. 1 − ѕιη2α = (ѕιηα − ¢σѕα)²
8. тαη2α = 2тαηα / (1 − тαη²α)
9. ѕιη2α = 2тαηα / (1 + тαη²α)
10. ¢σѕ2α = (1 − тαη²α) / (1 + тαη²α)
11. 4ѕιη³α = 3ѕιηα − ѕιη3α
12. 4¢σѕ³α = 3¢σѕα + ¢σѕ3α

2ѕιηα ¢σѕв=ѕιη(α+в)+ѕιη(α-в)
2¢σѕα ѕιηв=ѕιη(α+в)-ѕιη(α-в)
2¢σѕα ¢σѕв=¢σѕ(α+в)+¢σѕ(α-в)
2ѕιηα ѕιηв=¢σѕ(α-в)-¢σѕ(α+в)

» ѕιη(α+в)=ѕιηα ¢σѕв+ ¢σѕα ѕιηв
» ѕιη(α-в)=ѕιηα ¢σѕв-¢σѕαѕιηв

» ¢σѕ(α+в)=¢σѕα ¢σѕв - ѕιηα ѕιηв.
» ¢σѕ(α-в)=¢σѕα ¢σѕв+ѕιηαѕιηв.

» тαη(α+в)= (тαηα + тαηв)/ (1−тαηαтαηв)
» тαη(α−в)= (тαηα − тαηв) / (1+ тαηαтαηв)

» ¢σт(α+в)= (¢σтα¢σтв −1) / (¢σтα + ¢σтв)
» ¢σт(α−в)= (¢σтα¢σтв + 1) / (¢σтв− ¢σтα)

α/ѕιηα = в/ѕιηв = ¢/ѕιη¢ = 2я
» α = в ¢σѕ¢ + ¢ ¢σѕв
» в = α ¢σѕ¢ + ¢ ¢σѕα
» ¢ = α ¢σѕв + в ¢σѕα
» ¢σѕα = (в² + ¢²− α²) / 2в¢
» ¢σѕв = (¢² + α²− в²) / 2¢α
» ¢σѕ¢ = (α² + в²− ¢²) / 2¢α
» Δ = αв¢/4я
» ѕιηΘ = 0 тнєη,Θ = ηΠ
» ѕιηΘ = 1 тнєη,Θ = (4η + 1)Π/2
» ѕιηΘ =−1 тнєη,Θ = (4η− 1)Π/2
» ѕιηΘ = ѕιηα тнєη,Θ = ηΠ (−1)^ηα

Playlist | Lectures on Electrostatics - Chapter 3: Electric Potential and Potential Energy

2020-05-05T16:44:00.002+05:30

Lecture 1: Electrostatics - Concept of Electric Potential and Potential Energy

Lecture 2: Electrostatics - Derivation for Electric Potential and Potential Energy due to point charges

Lecture 3: Electrostatics - Derivation for Electric Potential due to electric dipole at Axial and Equatorial Position

Lecture 4: Electrostatics - Electric Potential at any general point due to electric dipole

Lecture 5: Electrostatics - Electric Field as gradient of Potential & Equipotential Surface and its Properties

Lecture 6: Electrostatics - Work done in rotating a dipole in Electric Field & its potential energy

Lecture 7: Electrostatics - Condition for Equilibrium (Stable/Unstable) for a dipole in Electric Field

Chapter 3) Numerical Solutions from Nootan ISC Physics | Electric Potential and Potential Energy

2020-05-05T15:49:00.000+05:30

Ques 5: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Ques 7: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Ques 8: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Ques 26: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Ques 27: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Ques 28: Chapter 3: Electric Potential and Potential Energy | Solution to numerical problem from Nootan ISC Physics

Chapter 2) Numerical Solutions from Nootan ISC Physics | Gauss' Theorem

2020-04-18T11:35:00.000+05:30

Ques 4: Chapter 2: Gauss' Theorem | Solution to numerical problem from Nootan ISC Physics

Ques 6: Chapter 2: Gauss' Theorem | Solution to numerical problem from Nootan ISC Physics

Ques 7: Chapter 2: Gauss' Theorem | Solution to numerical problem from Nootan ISC Physics

Chapter 1) Numerical Solutions from Nootan ISC Physics | Electric Charges and Fields

2020-04-15T11:37:00.000+05:30

Ques 5: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 6: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 7: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 10: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 11: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 13: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 15: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 16: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 17: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 19: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 21: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 22: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 24: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 25: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 28: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 29: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Ques 33: Chapter 1: Electric Charges and Fields | Solution to numerical problem from Nootan ISC Physics

Playlist | Lectures on Electrostatics - Chapter 2: Electric Flux, Gauss Law and its Application

2020-04-12T23:19:00.000+05:30

Lecture 1: Electrostatics: Definition of electric flux & treating Area as vector quantity

Lecture 2: Electrostatics: Gauss’s theorem in Electrostatics & Gaussian surface properties

Lecture 3: Electrostatics Gauss’s theorem Application E due to thin hollow spherical shell

Lecture 4: Electrostatics | Gauss’s theorem Application E due to Line & Sheet of Charge

Playlist | Lectures on Electrostatics - Chapter 1: Electric Charges and Fields

2020-04-01T08:16:00.000+05:30

Lecture 1: Electrostatics - Electric Charges and its Properties (Quantization of Charges, Conservation of Charges, Additive Properties etc.)

Lecture 2: Electrostatics - Coulomb's Law and Principle of Superposition

Lecture 3: Electrostatics - Electric Field Definition and Electric Field Due to point charge

Lecture 4: Electrostatics - Superposition of Electric Fields due to two charges

Lecture 5: Electrostatics - Electric Dipole and Dipole Moment, Derivation of Electric Field due to electric dipole at AXIAL point and EQUATORIAL point

Lecture 6: Electrostatics - Summary of Electric Dipole for Numerical Solving

Lecture 7: Electrostatics - Electric Field Lines - its properties and examples

Lecture 8: Electrostatics - Behaviour of Charges and Electric Dipole in uniform electric field and Torque experienced by electric dipole in electric field

QRS | Communication System - 2

2020-02-22T14:08:00.001+05:30

QRS | Communication System - 1

2020-02-22T14:07:00.001+05:30

QRS | Semiconductor Devices (Diodes and Transistors) & Logic Gates

2020-02-22T14:06:00.002+05:30

QRS | Nuclear Physics & Radioactivity

2020-02-22T14:05:00.002+05:30

QRS | Atomic Physics : Bohr's Model of Atom

2020-02-22T14:04:00.001+05:30

QRS | Photoelectric Effect - 2 & Matter Waves (de Broglie's hypothesis)

2020-02-22T14:02:00.002+05:30

QRS | Photo Electric Effect - 1

2020-02-22T14:01:00.000+05:30