Answer:
Explanation:
Formula for intensity of light after transmission for unpolarised light is
I₀ / 2 , We shall take up 180 degree disk first .
For second transmission , the formula is
I = I₀ Cos²θ , θ is angle between axis of polarizer and axis of vibration.
If we take up 30 degree polariser
I = I₀ / 2 Cos²( 180 - 30 )
= .375 I₀
For third transmission
I_ final = .375 I₀ x cos( 90 - 30 )
= .1875 I₀
Final/I₀ = .1875
Answer:
Hello, the tripping of a 230-kilovolt transmission line.
Explanation:
the tripping of a 230-kilovolt transmission line near Ontario, Canada, at 5:16 p.m., which caused several other heavily loaded lines also to fail. Hopefully this helps you find what your looking for!.
Constructive interference occurs when two waves overlap and the resulting wave has a larger amplitude. Hence, option (2) is correct.
What is interference?
The phenomenon in which there is an overlapping between the two waves propagating in a medium is known as interference. The interference is classified into two categories namely,
- Constructive interference
- Destructive interference
Constructive interference -
It occurs when there is a superposition of the two waves such that the resulting wave has a large amplitude.
Destructive interference -
It occurs when there is a superposition of the two waves such that the resulting wave has a lower amplitude.
Thus, we can conclude that constructive interference occurs when two waves overlap and the resulting wave has a larger amplitude. Hence, option (2) is correct.
Learn more about the interference here:
brainly.com/question/16098226
Because it is the force exerted on an object under normal conditions.
Answer:
Electromagnetic induction is a phenomenon in which a changing magnetic field across a loop of wire results in the generation of an induced emf. When there is relative motion between a magnet and the coil, magnetic flux changes and hence an electromotive force is generated in the coil.