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)
Most likely answer would be A
Answer:
to focus the link light
Explanation:
Because the lens is flexible and elastic, it can change its curved shape to focus on objects and people that are either nearby or at a distance. ... The ciliary muscles, which are part of the ciliary body, are attached to the lens and contract or release to change the lens shape and curvature.
I’m not sure what variables you are given, but since work = force x distance, and force = mass x acceleration, you could use work = mass x acceleration x distance
Total time of flight:2usin¢/g if we take g=10m/s²
T=1.2678s
maximum height:u²sin²¢/2g
H=2.009m
range:u²sin2¢/g
R=17.236m
