When We Determine the Angular Resolution of an Interferometric Array $\theta$

question 58

Multiple Choice

When we determine the angular resolution of an interferometric array of radio telescopes using the formula $\theta$$\infty$ $\lambda$ /D, the variable D stands for the

• A) diameter of the telescopes.
• B) separation between the telescopes.
• C) magnification of the telescopes.
• D) number of telescopes.
• E) focal length of the telescopes.

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Definitions:

Risk

The potential for loss or an undesirable outcome, often assessed in the context of investments or decision-making.

Portfolio

An array of fiscal investments encompassing stock shares, bond notes, commodities, spendable cash, and assets comparable to cash, plus mutual funds and ETFs.

Portfolio Expected Return

The weighted average of the expected returns on the assets included in a portfolio, representing the overall expected profit or loss.

Covariance

A statistical measure that indicates the extent to which two variables change together, signaling the direction of their linear relationship.