91影视

Acoustic ceiling tiles lay into a suspended or dropped ceiling grid and are used alter the acoustics in the room. These tiles can be made of various acoustical materials like fiber glass, foam, wood, polyester, and other substrates.

Distance from the observer to the object

$$\begin{gathered} L=8脳{10}^7\text{km} \\ =8脳{10}^{10}\text{m} \end{gathered}$$

Wave length

$$\begin{gathered} 位=550\text{nm} \\ =\left(550\text{nm}\right)\left({10}^{-9}\text{m/nm}\right) \\ =550脳{10}^{-9}\text{m} \end{gathered}$$

Distance from the pupil eye

$$\begin{gathered} d=5\text{mm} \\ =\left(5\text{mm}\right)\left({10}^{-3}\text{m/mm}\right) \\ =5脳{10}^{-3}\text{m} \end{gathered}$$

D is separation between objects.

We have the condition$\tan {胃}_R=\frac{D}{L}$

And from criteria $\sin {胃}_R=\frac{1.22位}{d}$

As ${胃}_R$is small $\tan {胃}_R鈮�\sin {胃}_R鈮�{胃}_R$

Therefore,

$$\begin{gathered} \frac{D}{L}=\frac{1.22位}{d} \\ D=\frac{1.22L位}{d} \\ D=\frac{\left(1.22\right)\left(8脳{10}^{10}\text{m}\right)\left(550脳{10}^{-9}\text{m}\right)}{5脳{10}^{-3}\text{m}} \\ =1073.6脳{10}^4\text{m} \\ =\left(1.1脳{10}^7\text{m}\right)\left({10}^{-3}\text{km/m}\right) \\ =1.1脳{10}^4\text{km} \end{gathered}$$

Hence, the linear separation of two objects on Mars is $1.1脳{10}^4\text{km}$.

In this case $d=5.1\text{m}$;

$$\begin{gathered} D=\frac{\left(1.22\right)\left(8脳{10}^{10}\text{m}\right)\left(550脳{10}^{-9}\text{m}\right)}{5.1\text{m}} \\ =1052.549脳{10}^1\text{m} \\ =\left(10525.49\text{m}\right)\left({10}^{-3}\text{km/m}\right) \\ =11\text{km} \end{gathered}$$

Hence, the linear separation of two objects on Mars is $11km$.