Our Discord hit 10K members! 🎉 Meet students and ask top educators your questions.Join Here!

Shoukat A.

Other Schools

Biography

I am Shoukat Ali. I have an M.Phil degree in Physics from Quaid-i-Azam University, Islamabad. I am a Physics teacher, tutor, and freelancer. My research interest covers Neutrino mass problem, Blackhole information problem, and Flavor Physics.
https://www.linkedin.com/in/shoukat-ali-5bba50165/

Education

MS Physics
Other Schools
BS Physics
Other Schools

Topics Covered

Physics Basics
Rotation of Rigid Bodies
Dynamics of Rotational Motion
Equilibrium and Elasticity
Moment, Impulse, and Collisions
Current, Resistance, and Electromotive Force
Direct-Current Circuits
Electromagnetic Induction
Sound and Hearing
Wave Optics
Electric Potential
Electromagnetic Waves
Reflection and Refraction of Light
Electric Charge and Electric Field
Capacitance and Dielectrics
Periodic Motion
Mechanical Waves
Gravitation
The First Law of Thermodynamics
The Second Law of Thermodynamics
Temperature and Heat
Thermal Properties of Matter
Inductance
Work
Kinetic Energy
Potential Energy
Energy Conservation
Motion in 2d or 3d
Motion Along a Straight Line
Applying Newton's Laws
Quantum Physics
Newton's Laws of Motion
Fluid Mechanics
Atomic Physics
Alternating Current
Gauss's Law
Magnetic Field and Magnetic Forces
Sources of Magnetic field
Nuclear Physics
Limits
Derivatives
Continuous Functions
Integrals
Integration
Integration Techniques
Particle Physics

Shoukat's Textbook Answer Videos

03:35
University Physics with Modern Physics

$Quasars, an abbreviation for quasi-stellar radio sources$, are distant objects that look like stars through a telescope but that emit far more electromagnetic radiation than an entire normal
galaxy of stars. An example is the bright object below and to the left of center in Fig. P36.60; the other elongated objects in this image are normal galaxies. The leading model for the structure
of a quasar is a galaxy with a supermassive black hole at its center. In this model, the radiation is emitted by interstellar gas and dust within the galaxy as this material falls toward the black hole. The radiation is thought to emanate from a region just a few light-years in diameter. (The diffuse glow surrounding the bright quasar shown in $\textbf{Fig. P36.60}$ is thought to be this quasar's host galaxy.) To investigate this model of quasars and to study other exotic astronomical
objects, the Russian Space Agency plans to place a radio telescope in an orbit that extends to 77,000 km from the earth. When the signals from this telescope are combined with signals
from the ground-based telescopes of the VLBA, the resolution will be that of a single radio telescope 77,000 km in diameter. What is the size of the smallest detail that this arrangement could resolve in quasar 3C 405, which is 7.2 $\times$ 10$^{8}$ light-years from earth, using radio waves at a frequency of 1665 MHz? (Hint: Use Rayleigh's criterion.) Give your answer in light-years and in kilometers.

Chapter 36: Diffraction
Shoukat A.
1 2 3 4 5 ... 254