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ALL PHYSICS DOUBTS - POST HERE !!
diva_sparkles:
gud luck 4 physics exm!!! ;)
Syed Kazim:
--- Quote from: pglasg74 on May 26, 2010, 11:30:30 pm ---omg thanks ur an angel.. i had 2 more qs though.. i think its 2007 but u know the question with the magnet and the wheel that turns? if not i plosted it a few pages ago.. umm ok tehy ask to find the driection of wheel turning, so my index pointed right, my current towards me and consequently my thumb pointed up.. which means clockwise idk how to get anticlockwise (the answer is anti)
and can u pls copy paste the image properties thankss
--- End quote ---
I think this is what you meant by image properties:
Converging Lens
Object between F and Optical Centre - Virtual, Upright and Larger than the object.
Object between F and 2F - Real, Inverted and Larger than the object.
Object at 2F - Real, Inverted, Same size as the object.
Object beyond 2F - Real, Inverted and Smaller than the object.
About that question:
--- Quote from: pglasg74 on May 26, 2010, 10:34:53 pm ---http://www.freeexampapers.us/IGCSE/Physics/CIE/2007%20Jun/0625_s07_qp_3.pdf
someone please tell me why number 9 its anticlockwise.. if i used FLH, my index points right,
--- End quote ---
Give me a few minutes please... let me figure it out.
6394:
--- Quote from: Syed Kazim on May 26, 2010, 11:38:57 pm ---I think this is what you meant by image properties:
Converging Lens
Object between F and Optical Centre - Virtual, Upright and Larger than the object.
Object between F and 2F - Real, Inverted and Larger than the object.
Object at 2F - Real, Inverted, Same size as the object.
Object beyond 2F - Real, Inverted and Smaller than the object.
About that question:
Give me a few minutes please... let me figure it out.
--- End quote ---
where do u live
r u givin xam in mornin??????????
Ivo:
--- Quote from: pglasg74 on May 26, 2010, 11:34:09 pm ---its number 9 in teh same paper.. 2007 mj.. thanks a loooot :)
and also http://www.freeexampapers.us/IGCSE/Physics/CIE/2005%20Nov/0625_w05_qp_3.pdf
q7 why is the eye to the right of the lens? can u tell me the image prop rules please thanks syed!
--- End quote ---
Here is my diagram in response to your question. Hope this helps :D
Syed Kazim:
--- Quote from: pglasg74 on May 26, 2010, 11:34:09 pm ---its number 9 in teh same paper.. 2007 mj.. thanks a loooot :)
and also http://www.freeexampapers.us/IGCSE/Physics/CIE/2005%20Nov/0625_w05_qp_3.pdf
q7 why is the eye to the right of the lens? can u tell me the image prop rules please thanks syed!
--- End quote ---
The distance of the object from the mirror (A in this case) must be equal to the distance of the mirror to the image (B in this case). Also, they must form in a straight line.
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