Answer:
2nd no. positive.... 3rd no. negitive......
Answer:
maliebility
Explanation:
this property allow us to beat a metal to sheets
Answer:
225nm
Explanation:
The Maxima of diffraction girating
dsin( θ)= m(λ)
Where θ)= angle between central axis and corresponding point
The wavelength is to corresponding sin( θ)
Then the maximum number of (λ) can be seen by setting sin( θ)= 1 then
d= m(λ)
At fifth order maximum m=1 then
d= 5(λ)
Where d= distance between the slit and with girating of 1/890rullig/mm
d= 1/890rullig/mm= 8.90×10^-6m
At maximum wavelength
d= 5(λ)
(λ)=5/d
= 8.90×10^-6m/5
=2.75*10^-7
= 275nm
Therefore, longest wavelength that forms an intensity maximum in the fifth order is 275nm
Since here two bulbs are connected in a line without any branching between them
Also there is same current through out the circuit in both bulbs
So it is SERIES combination of the circuit
here in series
current remains same
so correct answer is
<u>B. Series</u>
