It's just in the name! Accurate data is helpful, and correct, but reproducible data is all of that, and is able to be given to other people through different sources! At least, that's what my understanding of them are. Hope it helps!
Answer:
Intensity of the next bright fringe will remain same.
Explanation:
The question is based on Young's double slit experiment, since its about bright fringe, the interference here is constructive.
Young's condition for constructive interference is given by:
dsin
where,
d = slits distance from eachother or width of the slits
= wavelength
n = interferance order
Also, we know that in Young's experiment, the fringe intensity is given by:
where,
= phase difference
Therefore, in absence of phase difference i.e., 
, the intensity of the next bright fringe will not change and it will remain same.
Answer: a) 31.86 *10^-12 C=31.86 pC; b) 18 V
Explanation: In order to explain this problem we have to consider the expression a parallel plates capacitor,which is given by:
C=Q/V where C is equal to C=εo*A/d where A and D are the area and the separation between the plates.
also we have
Q=C*V=ε(o*A/d)*V=(8.85*10^-12*0.02*0.02/1*10^-3)*9=31.86*10^-12 C=31.86pC
Then if the plates apart to a new spacing of 2.0 mm the new capacitance is equal
Cnew=εo*A/2*d so Cnew =Cinitial/2
then Cnew =Q/Vnew (Q is constant after disconnection to the battery)
Finally Vnew= Q/(Cinitial/2)= 2*(Q/Cinitial)= 2*Vinitial= 2*9=18V
i dont know about this but im willing to help you even im a questioneer....
<h2>last choice:blocks 1,2 and 3</h2>
<h3>-questioneer </h3>
comment down below if you know anything about this and explain me so that i can answer it properly
