An electron enters a region between two large parallel plates made of aluminum separated by a distance of 2.0 cm and kept at a p
2 answers:
Answer:
a) d=0.1 cm=0.001 m
b) d=0.5 cm=0.005 m
c) d=1.0 cm=0.01 m
d) d=1.5 cm=0.015 m
e) d=2 cm=0.02 m
Explanation:
Let's start with the Coulomb force equation:
- F is the force
- q is the electron charge
- E is the electric field
The force is equal to the mass times the acceleration, so we will have:
(1)
Now, the potential difference between the two plates is given by:
(2)
- D is the distance between parallel plates (D = 2.0 cm = 0.02 m).
Let's put (2) in (1)
(3)
By the other side, let's recall the relation between velocities and acceleration of a particle, a kinematic equation:
(4)
- vf is the final velocity
- vi is the initial velocity
- a is the acceleration
- d is the distance
If we take square root in both sides, we will get the final velocity equation that depends on the distance.
(5)
Let's put (3) in (5)
a) For d=0.1 cm=0.001 m
b) For d=0.5 cm=0.005 m
c) For d=1.0 cm=0.01 m
d) For d=1.5 cm=0.015 m
e) For d=2 cm=0.02 m
I hope it helps you! :)
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Answer:
therefore critical angle c= 69.79°
Explanation:
Canola oil is less dense than water, so it floats over water.
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to calculate critical angle of light going from the oil into water
we know that
now putting values we get
c=
c=69.79°
therefore critical angle c= 69.79°
Answer:
Following are the answer to this question:
Explanation:
In option (a):
- The principle of Snells informs us that as light travels from the less dense medium to a denser layer, like water to air or a thinner layer of the air to the thicker ones, it bent to usual — an abstract feature that would be on the surface of all objects. Mostly, on the contrary, glow shifts from a denser with a less dense medium. This angle between both the usual and the light conditions rays is referred to as the refractive angle.
- Throughout in scenario, the light from its stars in the upper orbit, the surface area of both the Earth tends to increase because as light flows from the outer atmosphere towards the Earth, it defined above, to a lesser angle.
In option (b):
- Rays of light, that go directly down wouldn't bend, whilst also sun source which joins the upper orbit was reflected light from either a thicker distance and flex to the usual, following roughly the direction of the curve of the earth.
- Throughout the zenith specific position earlier in this thread, astronomical bodies appear throughout the right position while those close to a horizon seem to have been brightest than any of those close to the sky, and please find the attachment of the diagram.
