Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
rhea:
--- Quote from: Raywin on May 25, 2010, 03:46:46 pm ---Hmmm... Vernier calipers can measure internal dimensions (using the uppermost jaws in the picture given), external dimensions using the pictured lower jaws, depth measurements by the use of a probe that is attached to the movable head and slides along the centre of the body. This probe is slender and can get into deep grooves that may prove difficult for other measuring tools.
The vernier scales may include both metric and inch measurements on the upper and lower part of the scale.
Vernier calipers commonly used in industry provide a precision to a hundredth of a millimetre (10 micrometres), or one thousandth of an inch.
A more precise instrument used for the same purpose is the micrometer. I hope this info helps googled it.. ;) check the picture attached..
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yes!!
thankyou! ;D ;D ;D ;D
Vin:
spectrum
Ghost Of Highbury:
--- Quote from: 8T on May 25, 2010, 03:48:26 pm ---Is any1 free enough to post for me the electromagnetic spectrum in order of frequency and wavelenth .
I know that one goes opposite to the other .
Plus,an explanation of total internal reflection is helpful too.
Thanks in advance.
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high frequency low frequency
short wavelength long wavelength
Gamma ------------- X-Rays ---------- UV ------- Visible Rays -------- Infrared rays ------- Microwaves ------ Radio Waves
Vin:
--- Quote from: Adzel on May 25, 2010, 03:36:20 pm ---@ VIN: the resistance is always directly proportional to the P.D...
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I thought current is directly proportional to p.d :-\
Fastal:
--- Quote from: ~VIN1094~ on May 25, 2010, 03:55:25 pm ---I thought current is directly proportional to p.d :-\
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it depends on how you look at it, i think you both are right in some ways
when the resistance of an appliance is hight the potential for that appliance compared to others is high
and if there is one appliance, the higher p.d=higher current
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