Biology; Chemistry; Physics: Post your doubts here!

[Lilly2318]

ans is b. why?

Help

 

[Abdul Hanan]

4 blocks????

yea one crest and one trough.......

 

[peacce]

yea one crest and one trough.......

thanks heaps

 

[peacce]

yea one crest and one trough.......

diameter wala b pls

 

[Lilly2318]

The last in 72 years there will be 3 half lives as 1 is of 24
so u can use formula 1/2^n where n is number of half lives which will equal 1/8
ans.D

sorry but can u elaborate

 

[Lilly2318]

diameter wala b pls

ans A?

 

[Lilly2318]

explain Q 5. Ans is B

Plz anser

 

[peacce]

8 is D
10 B q hai? diagnmol tu D hai ?
12 C q? y not D

 

[peacce]

ans A?

hey yes how/

 

[Lilly2318]

hey yes how/

3.5-8

 

[Abdul Hanan]

diameter wala b pls

it just simply needs to be measured its A.....

 

[peacce]

3.5-8

from where did u get 3.5?

 

[Abdul Hanan]

sorry but can u elaborate

i always do it with the formula........ i dont think there can be more elaboration ....

 

[peacce]

it just simply needs to be measured its A.....

idun undrstand it bt

 

[Abdul Hanan]

idun undrstand it bt

look at inner walls of the wooden blocks..... first points at 3.5 2nd at 8 so 8-3.5=4.5

 

[Lilly2318]

8 nd 9 B?

 

[peacce]

look at inner walls of the wooden blocks..... first points at 3.5 2nd at 8 so 8-3.5=4.5

3.6 b hskta hai phir tu cn u make marks thru paint pls?

 

[peacce]

look at inner walls of the wooden blocks..... first points at 3.5 2nd at 8 so 8-3.5=4.5

n pls ans my new queries i postd ?

 

[peacce]

8 nd 9 B?

?wht r u talking about

 

[Lilly2318]

View attachment 42952 View attachment 42953

8 is D
10 B q hai? diagnmol tu D hai ?
View attachment 42954 12 C q? y not D

this Q 8 nd9