Hello :
<span>tan θ = -√3
sin</span>θ = √3/2 1/2
cosθ = -1/2
This is hard to solve when we don't know the visual graph this question is trying to refer from
Answer:0.369 m
Step-by-step explanation:
Given
Distance between slit and screen is 
Wavelength 
Angle between zeroth order bright fringe and Fourth-order bright fringe is 
let distance between the slits be d
Distance of n th bright fringe From central Fringe is given by

Also 



Answer:
The option which you chose is absolutely right.
Step-by-step explanation:
h(n) = 3^ n + 3
h(3n) = 3 ^3n + 3
Hope it will help :)
Answer:
look below
Step-by-step explanation:
I'll go in order from top to bottom




