<span>y(x,t)= 2.30mmcos[(6.98rad/m)x + (742 rad/s)t]
</span>A) Amplitude is 2.30mm<span>
B) Frequency 1/</span>2.30mm<span>
C) Wavelength is </span>6.98rad/m<span>
D) Wave Speed is </span>742 rad/s<span>
E) Direction the wave is traveling
</span>
Sunlight, because it provides a source of energy is the answer because plants also provide a food source (please put as brainliest answer)
I think the answer is strong force.
Answer:
Explanation:
Let the angle between the first polariser and the second polariser axis is θ.
By using of law of Malus
(a)
Let the intensity of light coming out from the first polariser is I'
.... (1)
Now the angle between the transmission axis of the second and the third polariser is 90 - θ. Let the intensity of light coming out from the third polariser is I''.
By the law of Malus

So,



(b)
Now differentiate with respect to θ.

