Biology; Chemistry; Physics: Post your doubts here!

[funky brat]

Can somebody explain the working of bimetallic strip

It consists of two strips of metal joined together. Both metals are different so they expand by different amount when heated. The one that expand less is curved more.

 

[asadalam]

It consists of two strips of metal joined together. Both metals are different so they expand by different amount when heated. The one that expand less is curved more.

A better explanation would be that the one the expands more is on the outside and vice versa no?

 

[funky brat]

A better explanation would be that the one the expands more is on the outside and vice versa no?

Actually no, there are two sides so how do you decide which is the outside.

 

[asadalam]

Actually no, there are two sides so how do you decide which is the outside.

The one that appears on the outside using my eyes

 

[funky brat]

The one that appears on the outside using my eyes

Best explanation.

 

[asadalam]

How is this root?Couldn't have been a stem?Cuz of Xylem?

 

[***amd***]

How is this root?Couldn't have been a stem?Cuz of Xylem?

coz of the root hairs at the cicumference

 

[Awesome12]

Ma Shaa Allah 0.0 haath to check karo! wah!

 

[asadalam]

View attachment 40853

A real da vinci here folks

 

[asadalam]

coz of the root hairs at the cicumference

They're really minute How do they expect us to notice that!

 

[funky brat]

How is this root?Couldn't have been a stem?Cuz of Xylem?

This is root, it's very clear. The xylem is not like this in the stem. It's in sections.

 

[funky brat]

They're really minute How do they expect us to notice that!

I don't even think anybody would notice that. It's just that root structure is like this.

 

[Faizan Muhammmad]

IWas looking for a tough Phy P4 anybody knows?

 

[funky brat]

IWas looking for a tough Phy P4 anybody knows?

Do tell me as well.

 

[DaniyalK]

Try the first question of w04_qp4

 

[princess Anu]

Meiosis occurs in anthers or pollen grains?

 

[funky brat]

Meiosis occurs in anthers or pollen grains?

Pollen grains are formed by meiosis but it occurs in anthers.

 

[Laibaaa]

https://www.xtremepapers.com/community/threads/bio-atp-help.33079/ Help

 

[funky brat]

https://www.xtremepapers.com/community/threads/bio-atp-help.33079/ Help

Your signature, though.

 

[Riding hood]

Salam, please solve my queries about physics
Firstly, is diodes and rectification included in our syllabus?
Second, which direction of current do we have to follow? Conventional or from negative to positive while solving questions?
And lastly is it ok if we completely skip chapter 25 electronic systems?