Hey there,
Answer:
A, True
Hope this helps :D
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Answer:
force = 0.20N .F = m ×a .& a = v/t then the f = m×v/t.
Explanation:
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:
brainly.com/question/13095658
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Answer: radio waves dont need a medium to travel through
Explanation:
Answer:
750W
Explanation:
Given parameters:
Weight = 1 x 10³N = 1000N
Distance = 1.5m
Time = 2s
Unknown:
Power = ?
Solution:
Power is the rate at which work is done
Work is the force applied on a body to move it through a particular distance
Work = force x distance
Power = 
Now, work = 1000 x 1.5 = 1500J
So;
Power = 
= 750W
