I am assuming you know the relation obtained between slit width, distance of screen from slits, distance of interference pattern obtained on the screen from the center and the wavelength of monochromatic light used in Young's Double Slit experiment.
λ =

λ ~ 1.97 ×10⁻⁷m
Answer:
I. don't. get. this. question
C. Demand increases
Pace increases
Cups
teaspoon
tablespoon
liters
milliliters
gallons
pints
tons
inches
Answer: I don't understand
Explanation:
study and pay attention