In order to calculate the angle, we can use the formula below for a constructive interference (the interference is constructive because the fringe is bright):

Where d is the distance between the slits, m is the order of the interference and lambda is the wavelength.
So, using d = 8.25 * 10^-5, m = 2 and lambda = 4.5 * 10^-7, we have:

Therefore the correct option is the second one.
Answer:
Using clean, renewable, and readily available solar energy as fuel.
Preserving natural resources by not requiring the use of wood or other biomass fuels to cook.
Not producing dangerous emissions which pollute local environments and contribute to climate change.
Explanation:
Answer:
D
Explanation:
Work is not a vector but it is a scalar
The force of friction is 78.4 N
What is force of friction?
Frictional force is the force created when two surfaces come into contact and slide against each other. it is given by the equation:
μ * 
where,
= force of friction
μ = coefficient of friction
= normal force
Given,
μ 
We know,


Subsituing the values in equation:
μ * 

The force of friction is 78.4 N.
To know more about force of friction, check out:
brainly.com/question/24386803
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This is a tricky one but on my part I'd have to say depending on the contract A,B,C.