The 200-In Reflecting Telescope at Mt $\times$ 10^-8 Rad
B)1 $\times$ 10^-7 Rad
C)7

question 23

Multiple Choice

The 200-in reflecting telescope at Mt.Palomar has an objective mirror with a focal length of 16.8 m.The effective aperture is the diameter of the 200-in mirror (200 in = 5.08 m) .For light in the blue region (450 nm) ,what is the smallest angle between two stars that this telescope can ideally resolve? (In practice,the limit of resolution is due to atmospheric turbulence.)

• A)1.1 \(\times\) 10^-8 rad
• B)1.1 \(\times\) 10^-7 rad
• C)7.3 \(\times\) 10^-7 rad
• D)1.1 \(\times\) 10^-4 rad
• E)8.9 \(\times\) 10^-5 rad

---

Definitions:

CTRL+SHIFT

A keyboard shortcut combination often used to perform advanced or alternative commands in software applications.

Cycle Clockwise

This term could refer to rotating an object or elements within a software application in a direction that follows the movement of a clock's hands.

Annotation

A note or comment added to a document or image for explanation or commentary purposes.

Web Note

A feature allowing users to annotate, draw, and comment directly on web pages, often used in web browsers for research or collaboration.