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Sequence of Learning Physics

In what sequence should these chapters be prepared for my exams:-
units and dimensions,kinematics,laws of motion,work power and energy,motion of system of particles and rigid body dynamics,gravitation.

Apoorv Katoch asked

Answer:

It is better to follow the same pattern as given in NCERT text book

How to get A in physics?

Nischal Singh Dangol Asked:

How to get A in physics?

Answer:

Whatever the syllabus or course, an A grade means “Excellent work indicating a clear mastery of the subject material”

This requires evidently a basic understanding of the subject, thorough with the fundamentals and the ability to apply the principles to solve problems creatively. One should be able to make suitable connections between concepts logically to solve the problem in hand. (Remember, Physics is often referred to as a Problem Solving Discipline)

A grade in Physics comes naturally if you start loving the subject and take active interest in applying the concepts of Physics to solve problems (in subject as well as in day to day life situations)

Also important :

  • Maintaining good rapport is also important in getting an A grade.
  • Attend all lectures/classes and never bunk
  • Do your assignments sincerely and submit in time

Wish you all the best.

Got some more suggestions?

Use the commenting system to post your ideas.

A Numerical from Kinematics

Pooja asked:

an aeroplane flies 400km due west from city A to city B,then 300km north east to city C,and finally 100km north to city D. how far is it from city A to D?in what direction must the aeroplane had to return directly to city A from city D?

Answer will be posted soon

Cable transmission of signals

HS Varun asked:

How is it possible to transmit a no. of channels through the same cable ?
Is it based on the concept of Bandwidth ?

Answer:

In a cable TV system, each channel is assigned a range of frequency (6-8MHz range)

A question from Gravitation.

Prince Patel Asked:

“Sun have high gravitational energy ,then why planets of solar system doesn’t colloid with sun?”

Answer:

“The planets are moving around the sun and the gravitational force is used in providing the necessary centripetal force (The force required by a body to move in a circular path). As long as the planets are in motion, they will not move towards the sun. A similar explanation hold good for moon going around earth also.”

Find time of death of patient with differential equations

Mr. N.P. Sahani asked:

“The differential equation and solution for finding the time of death of a patient”

Answer:

See that the question is to find the time of death (Not predicting the time of death. I thought that when I read it first.)

I can give some links which will be helpful in this connection

  1. http://www.exploreforensics.co.uk/estimating-the-time-of-death.html
  2. http://en.wikipedia.org/wiki/Thermal_death_time
  3. http://autarkaw.wordpress.com/2008/07/21/time-of-death-a-classic-ode-problem/
  4. http://people.uncw.edu/lugo/mcp/DIFF_EQ/deproj/death/death.htm
  5. http://mathforum.org/library/drmath/view/53409.html
  6. http://www.scribd.com/doc/21514655/Newton-s-Law-of-Cooling-Finding-the-Time-of-Death-of-a-John-Doe

magnetic field

Which one we should use Bio saverts law or amperes law to find a magnetic field?

chirag

Answer

Both are used to find the magnetic field .In the case  of physical magnet Biot-Savarts law can be used

In the case of a current carrying conductor Ampers circuital law is used

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