Answer:
377 nm
Explanation:
Number of lines per meter is, 
Grating element is, 
![=1.8868 \times 10^{-6} \mathrm{~m}[tex] Order is, n=5 Condition for maximum intensity is, [tex]d \sin \theta=n \lambda](https://tex.z-dn.net/?f=%3D1.8868%20%5Ctimes%2010%5E%7B-6%7D%20%5Cmathrm%7B~m%7D%5Btex%5D%0A%3C%2Fp%3E%3Cp%3EOrder%20is%2C%20n%3D5%0A%3C%2Fp%3E%3Cp%3ECondition%20for%20maximum%20intensity%20is%2C%20%5Btex%5Dd%20%5Csin%20%5Ctheta%3Dn%20%5Clambda)
Answer:
<em>Amplitude= 8 m</em>
Explanation:
<u>The Amplitude of a Wave</u>
Sinusoidal Function refers to a mathematical curve with a smooth and periodic oscillation. Its name comes from the sine function and is characterized by the amplitude or the maximum displacement or distance moved by a point on a vibrating body measured from its equilibrium position.
To calculate the amplitude from a graph, we measure the maximum point and the minimum point the wave reaches. Then we subtract both values and divide the result by 2.
The shown wave in the figure has a maximum value of 8 m and a minimum value of -8 m. The distance from the maximum to the minimum is 8-(-8)= 16 m, thus the amplitude is 16/2= 8m.
Amplitude= 8 m
Answer: Yes it possible for a system to have negative potential energy, since the choice of the zero of potential energy is arbitrary.
Explanation:
Potential energy is defined as the energy present in an object due to its position.
Mathematically, P.E = mgh
A potential energy can be negative also. This is because zero potential energy is arbitrary. For example, at the top of a building the choice of potential energy can be zero.
Therefore, the potential energy below the building will be negative.
Velocity can change when there is a change in direction and speed.
