Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
dodi23:
--- Quote from: Ari Ben Canaan on May 26, 2010, 11:36:42 am ---Quick question.
Is monochromatic light of ONE FREQUENCY or ONE WAVELENGTH ?
--- End quote ---
monochromatic is one colour with one definite frequency!!
Ghost Of Highbury:
One frequency. One speed. One wavelength.
As the speed of light is constant, and the frequency of that monochromatic light cant change, its wavelength remains the same. Provided the light is travelling in one medium.
Dana:
--- Quote from: Fastal on May 26, 2010, 11:35:43 am ---what are the ways of creating a magnet? can a permanent magnet be made just by magnetizing steel once with an electromagnet?
--- End quote ---
magnetising with an electromagnet? ??? You mean by a coil/d.c.? Then yes, it can make a permanent magnet. You can also suspend it in the N-S position and hammer it. That'll make a permanent magnet too
the_grim_reaper:
--- Quote from: Dana on May 26, 2010, 11:24:54 am ---Ahh yes I used to live in Riyadh now I live in Khobar. How is it there?
Haha we have a pretty > >:( invigilator too. Gives the dirtiest looks you'll ever see -.- Almost got kicked out of my bio exam cuz i forgot my statement of entry ::)
Yeaa I guess, but usually variants are pretty similar in paper 1. I dno I still love to know whether it was easy or difficult
where ru from?
--- End quote ---
Believe me the two variants are different as hell this time. Well some of my esteemed fellows took the liberty to call all the way to Pakistan and find out about the other variant and they were utterly disappointed after doing their papers ;D. From Pakistan but was born in Riyadh :D..
Anyway, people about to go for the exam. Any final piece of advice??? Well I've got to say something. DON'T ever forget to use the toilet before an exam. I was later to find out the consequences during my English Paper 4... :D.
Ghost Of Highbury:
--- Quote from: Dana on May 26, 2010, 11:38:54 am ---Hmm, not sure. Don't stress yourself over it too much though, I'm sure it's not THAT important. You know the basics and stuff right?
--- End quote ---
Making a magnet
Stroking method (repetitive contact b/w magnet and steel)
Electrical method
Destroying magnetism
Hammering
Heating
Alternating current method
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version