If white light illuminates a diffraction grating having 790 lines/mm , over what range of angles does the visible m = 1 spectrum extend?

We are given the property of the illuminating light:

790 lines/mm

Which is also equivalent to:

790,000 lines/m

Taking the reciprocal of this value will give us the distance per line:

d = 1 m / 790,000 lines

d = 1.2658 * 10^-6 m 

Now we can solve for the range of angles using the formula
λ = d * sin θ 

sin θ  = λ / d

where λ is the wavelength of light and θ is the angle

Now we know that visible light ranges from 400 to 700 nm, therefore we use these values to find the range.

when λ = 400 nm = 400 * 10^-9 m

sin θ = 400 * 10^-9 m / 1.2658 * 10^-6 m 

θ = 18.42°

when λ = 700 nm = 700 * 10^-9 m

sin θ = 700 * 10^-9 m / 1.2658 * 10^-6 m 

θ = 33.57°

Therefore the range of angles is 18.42° to 33.57°.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.