Biology; Chemistry; Physics: Post your doubts here!

[exploded diper]

yes....
diffraction is the bending of waves around the edges of a hard surface
if the gap between the blocks is wider then it will pass as lines with slight deflection at edges but narrowing it making the lines circular
diffraction doesn't change speed wavelength or frequency of waves, only its shape is changed

thx.....

 

[Karim Nabil]

have u checked the igcse thread......

i didn't get you!

 

[Karim Nabil]

thx.....

you're welcome Bro!

 

[Faizan Muhammmad]

Its artificial selection

I know
I posted this cause Sahiwal is supposed to be in Pakistan and not Africa

 

[funky brat]

A) Ammeter
B) Switch then Bulb B,C in Series. This is "attached" to Main Circuit
3) Bulb A after Ammeter

Would it be correct of I drew it this way?

 

[exploded diper]

I know
I posted this cause Sahiwal is supposed to be in Pakistan and not Africa

yeh but the cow breed could be in africa...............

 

[Faizan Muhammmad]

yeh but the cow breed could be in africa...............

one good reason why an african cow would be named Sahiwal especially when Sahiwals own real breed exists ?

 

[exploded diper]

Would it be correct of I drew it this way?

nope.....nope nope nope nope nope....NOPE...

 

[funky brat]

nope.....nope nope nope nope nope....NOPE...

But why? Explain please.

 

[exploded diper]

one good reason why an african cow would be named Sahiwal especially when Sahiwals own real breed exists ?

http://en.wikipedia.org/wiki/Sahiwal_cattle
no need for thx......

 

[Faizan Muhammmad]

http://en.wikipedia.org/wiki/Sahiwal_cattle
no need for thx......

I KNOW
THAT IS THE WHOLE POINT !!

 

[funky brat]

But why? Explain please.

The circuit the guy made, is it correct? I mean the space is given, aren't we supposed to complete within?

 

[exploded diper]

yeah but still u need rearranging wait i will show u......

The circuit the guy made, is it correct? I mean the space is given, aren't we supposed to complete within?

 

[Faizan Muhammmad]

The circuit the guy made, is it correct? I mean the space is given, aren't we supposed to complete within?

dont think so

 

[funky brat]

What you don't think so?
What paper is it? What's written in the mark scheme?

 

[exploded diper]

Would it be correct of I drew it this way?

 

[exploded diper]

What you don't think so?
What paper is it? What's written in the mark scheme?

 

[funky brat]

View attachment 40091

WHAT'S THE DIFFERENCE?

 

[princess sofia]

any1 knows where i cn fnd specimen papers n revison checklist 4 bio , chemistry n phys

 

[Faizan Muhammmad]

lemme do it