Answer: a = -2/3
Step-by-step explanation:
Let's start by multiplying both sides by
to simplify:




Looking only at the exponents, it seems like
, so
.
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:
D. y = 8.9 ÷ 0.4
Step-by-step explanation:
I hope this helps