Physics: Post your doubts here!

[Tulaib]

no problem. i was just telling you that it was in o level as well.
if you want the complete reason see the derivation of rho g h which is indeed in our syllabus
sorry for very rough drawing. it's a pain to draw in paint:

no prob bro ty for ur help

 

[Suchal Riaz]

Tulaib
v=s/t so t=s/v
s=3 λ, v=c
t=3 λ /c

 

[Suchal Riaz]

Tulaib
q30
the difference between two maximum five 1/2 λ so λ=0.66m v=f λ so f=v/ λ so f=500Hz, f=1/T, so T=1/f so T=2ms each block is of 0.5 ms so the wave has a period of 4 blocks. so answer is B

 

[Suchal Riaz]

no prob bro ty for ur help

this community works by contribution of people like you and me.
i would be glad if you would help others on this thread or on chemistry&math thread.

 

[Suchal Riaz]

Thought blocker

 

[Suchal Riaz]

I am embarrassed by my hand writing and drawing skills. But you must have to bear it.

 

[Thought blocker]

Thought blocker View attachment 39050

from where 0.32 came ?

 

[Thought blocker]

I am embarrassed by my hand writing and drawing skills. But you must have to bear it.

We have strength to counter it

 

[Suchal Riaz]

from where 0.32 came ?

well the graph is not there for decoration.
i chose a random value of F and it's corresponding value of x. and converted it into meters

 

[Thought blocker]

well the graph is not there for decoration.
i chose a random value of F and it's corresponding value of x. and converted it into meters

Oh..! I c ty

 

[Suchal Riaz]

Oh..! I c ty

you are doing coursebook questions? because past papers were too easy

 

[Thought blocker]

you are doing coursebook questions? because past papers were too easy

Sarcasm ? Or really ?

 

[Suchal Riaz]

Sarcasm ? Or really ?

i have a dp of sheldon. so i must have difficulty understanding sarcasm.
it was sacrasm. bazinga!

 

[Thought blocker]

i have a dp of sheldon. so i must have difficulty understanding sarcasm.
it was sacrasm. bazinga!

So, Paper are damn tough than this -_- ? :'(

 

[Suchal Riaz]

So, Paper are damn tough than this -_- ? :'(

10X

 

[Thought blocker]

10X

:'( :'( :'( :'(

 

[Thought blocker]

Meko nai dena exam :''''''''''''''''''''''''''''''''''''''(

 

[Suchal Riaz]

Meko nai dena exam :''''''''''''''''''''''''''''''''''''''(

dena te paye ga. hun drame na kar. dein te tu jaye ga minu pata ey.

 

[Thought blocker]

dena te paye ga. hun drame na kar. dein te tu jaye ga minu pata ey.

Han, jaunga hi na I'am not dumb I was kidding.

 

[Suchal Riaz]

Han, jaunga hi na I'am not dumb I was kidding.

i never said you are dumb. i was kidding too.