Answer:
The correct answer is "4.26 m".
Explanation:
Given:
Wavelength,

or,

Distance,

or,

Distance between the 1st and 2nd dark fringes,
As we know,
⇒ 
or,
⇒ 
By substituting the values, we get




B. Decreasing surface area of a solid reactant. The more surface area showing, the quicker the reaction rate.
150 horsepower and 6000 ft-lb of torque.