Biology; Chemistry; Physics: Post your doubts here!

[exploded diper]

2 moles of water is 36 g. 100g - 36g=64g?
Subtraction

Even i don't understand this question properly, but C would be my tukka.

becuz 36 g have reacted and the amount of water remaining is to be calculated........

 

[exploded diper]

here is a link i think it will helps you !
http://www.s-cool.co.uk/gcse/biology/environment/revise-it/cycling-through-nature

thx man

 

[Karim Nabil]

thx man

you're most welcome!

 

[Awesome12]

2 moles of water is 36 g. 100g - 36g=64g?
Subtraction

Even i don't understand this question properly, but C would be my tukka.

becuz 36 g have reacted and the amount of water remaining is to be calculated........

Thanks. I get it now

 

[exploded diper]

Thanks. I get it now

just doing my duty ma'am....

 

[DaniyalK]

How do you draw the circuit for this question? I'm really confused =/

 

[Jenn]

1. one named, commercially important application of asexual reproduction in plants?
   

 

[princess sofia]

1. one named, commercially important application of asexual reproduction in plants?

genetic enginering , selective breeding , biotechology
in genetic engineering as asexual reproduction takes place in the micro organisms , the gene inserted is passed on to every hybrid

 

[Faizan Muhammmad]

Found it in Bio paper

 

[FLRNAB]

How do you draw the circuit for this question? I'm really confused =/

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

 

[exploded diper]

is there any use of this formula:
Sin c = nr/ni
sin c= refractive index of second material/refractive index of first material.........

 

[Karim Nabil]

is there any use of this formula:
Sin c = nr/ni
sin c= refractive index of second material/refractive index of first material.........

yes if he is asking to find the critical angle of the medium but i think it is better to use sinc=1/n

 

[exploded diper]

WAVES Diffraction and Interference is this in our course..........

 

[Karim Nabil]

WAVES Diffraction and Interference is this in our course..........

yes for waves diffraction but interference is for Al students only

 

[exploded diper]

yes for waves diffraction but interference is for Al students only

so vat is diffraction.....r u giving exams for igcse......

 

[Dream.Eater]

Found it in Bio paper
View attachment 40064

Its artificial selection

 

[Dream.Eater]

WAVES Diffraction and Interference is this in our course..........

No, it was in the old syllabus but removed from new 5054 syllabus

 

[exploded diper]

No, it was in the old syllabus but removed from new 5054 syllabus

oh gud.....

 

[Karim Nabil]

so vat is diffraction.....r u giving exams for igcse......

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

 

[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

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