Answer:
E. d and O
Explanation:
"Light passing through a single slit forms a diffraction pattern somewhat different from those formed by double slits or diffraction gratings".
According to Huygens’s principle, "for each element of the wavefront in the slit emits wavelets. These are like rays that start out in phase and head in all directions. (Each ray is perpendicular to the wavefront of a wavelet.) Assuming the screen is very far away compared with the size of the slit, rays heading toward a common destination are nearly parallel".
The destructive interference for a single slit is given by:
Where
d is the slit width
is the light's wavelength
is the angle relative to the original direction of the light
m is the order od the minimum
I represent the intensity
When the intensity and the wavelength are incident normally the angular as we can see on the expression above the angular separation just depends of the distance d and the wavelength O.
Answer: friction has no role to play in this case. because friction usually occurs between to parts which come in contacts. examples (a)our joints in the human body (b)two mechanical parts (shafts).
Explanation:
However what this topic relates to is gravity. The pebble and paper both weigh one gram, but have different density this is the sole reason why if both are drop from same height the pebble would reach the ground faster than the paper because it is more denser. unlike the paper with a lesser density which would take a longer time to reach the ground.
h=5t^2
Replace what you know making the equation
h=5(4)^2
now get ride of 4^2
4^2=16
h=5(16)
now multiply 5 and 16
resulting in the answer
H=80
Answer:
valence shell electron pair conversion theory (VSEPR)
Explanation:
The theory of the repulsion of the electronic pairs of the valence layer (VSEPR) Unlike the ionic bond, the covalent bond is directional. The shape of a molecule explains an essential part of its properties. The theory of the repulsion of the electronic pairs of the valence layer (VSEPR) makes a simple addition to Lewis's ideas that allows us to foresee the shape of a given molecule: “The electronic pairs repel each other, so that they place as far as possible from each other. ”