When light is incident parallel to the principal axis and then strikes a lens, the light will refract through the focal point on the opposite side of the lens.
To find the answer, we have to know about the rules followed by drawing ray-diagram.
<h3>What are the rules obeyed by light rays?</h3>
- If the incident ray is parallel to the principal axis, the refracted ray will pass through the opposite side's focus.
- The refracted ray becomes parallel to the major axis if the incident ray passes through the focus.
- The refracted ray follows the same path if the incident light passes through the center of the curve.
Thus, we can conclude that, when light is incident parallel to the principal axis and then strikes a lens, the light will refract through the focal point on the opposite side of the lens.
Learn more about refraction by a lens here:
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5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.<span>
The answer choice above is correct.
The instantaneous velocities are the actual </span>velocities while traveling ( the velocity during that instant ). The average velocity is the average of the instantaneous velocities ( the speed in one direction equivalent to the two speeds <span>in different directions ).
I used speed in the explanation because velocity is speed with direction.</span>
Your answer for the question is B c e
Answer:
a

b

Explanation:
From the question we are told that
The maximum angular speed is 
The time taken is 
The minimum angular speed is
this is because it started from rest
Apply the first equation of motion to solve for acceleration we have that

=> 
substituting values


converting to 
We have


According to the first equation of motion the angular displacement is mathematically represented as

substituting values


converting to revolutions


cation
anion is negatively charged, so more electrons then protons,
cation is positively charged, so more protons thatn electrons