urgent help needed for bio paper IV

[guitarist112]

can anybody help me out in bio !!!!

 

[IGCSE O/L student]

sure, i'll try. wats ur doubt?

 

[guitarist112]

sure, i'll try. wats ur doubt?

paper 4 magnification and etc...!!!

 

[senal avishka gamage]

paper 4 magnification and etc...!!!

for magnification question most probably will be to draw your own diagram looking at an image provided where using the equation magnification=your drawn image distance/real object distance to find the distance you should use a ruler and measure from one end of the object to the other repeat the same with your drawing. the ratio of this is the magnification. In case the object provided also has been given a magnification value such as the image and in the bottom eg:- *___ then also use should use the same equation to find the actual distance and then find the ratio of you image distance/actual distance. Therefor when they ask to draw something looking at a picture it's best to draw a image that is propotional to the given image..........................................best of luck​

 

[IGCSE O/L student]

if dey dont mention, always make ur diagram larger dan da given diagram.

 

[guitarist112]

for magnification question most probably will be to draw your own diagram looking at an image provided where using the equation magnification=your drawn image distance/real object distance to find the distance you should use a ruler and measure from one end of the object to the other repeat the same with your drawing. the ratio of this is the magnification. In case the object provided also has been given a magnification value such as the image and in the bottom eg:- *___ then also use should use the same equation to find the actual distance and then find the ratio of you image distance/actual distance. Therefor when they ask to draw something looking at a picture it's best to draw a image that is propotional to the given image..........................................best of luck​

and what about the ringing and visking tubing experiments can you explsin them to me!!!

 

[guitarist112]

thanks and can you tell me the results of the visking tubing and the ringing experiments results!!!