A mirror either concave or convex will produce diff type of inmage..
For example 1 of the mirror will be virtual,upright, and enlarge something like that

tu lah ... no same leh ... susah nak cakap. later tell you

oh..ok...later tell me..now go study chemistry

hmmph.. it doesnt matter if u dont understand the real meaning of these terms.. for spm level, just memorize the characteristics of the images form and you'll be alright..

Upright left and right change..Like our mirror..
Inverted is terbalik...

it is easier to explain by using diagram

real image


virtual image

Hey, anybody have notes or links for BM Tatabahasa?

care to post it up? thanks.

still dun understand.

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Added on November 3, 2008, 7:07 pmthen how abt laterally inverted?

This post has been edited by vick5821: Nov 3 2008, 07:07 PM

The best example will be the words.
When the words is reflected on the mirror, the words will become literally inverted

this i know..how abt upright? same with laterally inverted?

dude! read your reference book! it's all there!
do your homework first before u start asking questions..

Don't forget, there's convex and concave mirrors as well as lens.
Both have different properties and should be easily found in your reference book.

i still dun understand what is virtual image..nvm wait for work_tgr

that one is good example for lense

I've always been wondering about properties of images formed by lenses/mirrors..

I never found an easy way to memorise the properties, so I didn't bother :/

Basic definition of virtual image:
An image which cannot be projected/focused onto a screen is called a virtual image.
For mirrors, the image is virtual if it is behind the mirror. (Convex mirror will always produce a virtual image.)
For lens, the image is virtual if it is front of the lens. (Concave lens always produce a virtual image.)
When image is at infinity, the image is virtual.

very good.

what is the formula for convex lens ?
is it 1/f=1/u+1/v or u=2f or wat ?
how to know when to use these formula?

1/u + 1/v = 1/f
Example:
An object is placed at 30cm from a convex lens of focal length 10cm. Determine the position of the image.
Your answer should be 15cm.

I oso hard 2 memorize that light chapter.The only topic that i am not good at in physic,others topic ok ok nia.

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Added on November 3, 2008, 8:50 pmI oso hard 2 memorize that light chapter.The only topic that i am not good at in physic,others topic ok ok nia.

This post has been edited by sasaug: Nov 3 2008, 08:50 PM