Biology; Chemistry; Physics: Post your doubts here!

[Faizan Muhammmad]

Sorry to pop in.
But guys, but want to confirm something. i heard nov sessions is easier than june.? but there is a disadvantage of it too, percentile doesn't work in nov session?

dunno ,
there are so many rumours saying different stuff
in the end all is same

 

[Lilly2318]

We use gamma only,cuz its the only one that can penetrate through the skin easily.

Using the formula H=mc(delta)
5.2X1000=5200=2x20x (X)
Divide 5200 by 40 we get 130 so C is the answer

In calibration we use 2 fixed points that are 0 C and 100C

why 5.2 x 1000?

 

[Lilly2318]

is the answer D ?

C

 

[sameersuleman]

Q17 PLZ HELP

ans is 17(C) because s.heat capacity = 5200/20*2

 

[kirann]

why 5.2 x 1000?

because thats kilojoules not just joules

 

[asadalam]

why 5.2 x 1000?

SI unit is joules not kilojoules and we always use si units in calculations

 

[exploded diper]

why 5.2 x 1000?

kyun kae value killo joules me de hui ha........joules mein chahiya hoti hai

 

[exploded diper]

because thats kilojoules not just joules

SI unit is joules not kilojoules and we always use si units in calculations

kyun kae value killo joules me de hui ha........joules mein chahiya hoti hai

such timing much wow....

 

[kirann]

Sorry to pop in.
But guys, but want to confirm something. i heard nov sessions is easier than june.? but there is a disadvantage of it too, percentile doesn't work in nov session?

lol. i heard nov sessions are more difficult

 

[exploded diper]

lol. i heard nov sessions are more difficult

same....

 

[kirann]

m so worried of chem mcq's is any1 else too?

 

[exploded diper]

 

[kirann]

lol, hahahah, hilarious

 

[kirann]

another mind-BLOWING question hahah
explain somebody

 

[asadalam]

another mind-BLOWING question hahah
explain somebody View attachment 42794

Is the answer D?They act in different directions so no matter where they act,it can never add up and be greater than 50.

 

[Suhaib]

another mind-BLOWING question hahah
explain somebody View attachment 42794

D should be the answer reason already explained ^

 

[Lilly2318]

Help in Q 32. the ans is D

 

[Faizan Muhammmad]

another mind-BLOWING question hahah
explain somebody View attachment 42794

its A even if they act totally against there will be 20N atleast

 

[Faizan Muhammmad]

Is the answer D?They act in different directions so no matter where they act,it can never add up and be greater than 50.

they can go upto 79.9999 N and be acting differently
add maths

 

[asadalam]

its A even if they act totally against there will be 20N atleast

Yeah i guess that would make more sense.