0.19
Explanation:you will divide 3.5 and 18
Answer:
134.77 mm
Explanation:
Wave length of light λ = 599 x 10⁻⁹ m
Slit separation d = 20 x 10⁻⁶ m
Screen distance D = 3 m
Distance of second dark fringe from centre
= 1.5 x λ D / d
Putting the values given above
distance = 
= 134.77 x 10⁻³ m
= 134.77 mm.
The answer is 100mm/s. I hope this helps :)
Answer:
1. Huge wildfires
2. Deforestation
3. Reduced amount of aforestation, etc