An Astronomical Telescope Has an Objective of Diameter 20 Cm

question 17

Multiple Choice

An astronomical telescope has an objective of diameter 20 cm with a focal length of 180 cm.The telescope is used with an eyepiece of focal length 30 mm.What is the angular magnification of this telescope?

• A) 360 x
• B) 60 x
• C) 540 x
• D) 6 x
• E) 180 x

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Definitions:

Elaborative Rehearsal

A memory technique that involves thinking about the meaning of the term to be remembered, as opposed to simply repeating the term to oneself.

Systematic Rehearsal

A deliberate practice or repetition of information to be remembered, often to move it from short-term to long-term memory.

Visuospatial Sketchpad

The visuospatial sketchpad is a component of working memory model that processes and stores visual and spatial information. It is important for navigation, understanding spatial relations, and manipulating objects in our environment.

Phonological Loop

A component of working memory responsible for temporarily storing and manipulating verbal and auditory information.