An Astronomer Is Trying to Detect an Exoplanet Via the Microlensing

question 6

Multiple Choice

An astronomer is trying to detect an exoplanet via the microlensing method. Which of these changes to a particular planet will make it easier to detect, if everything else about the planet is unchanged?

• A) increasing its radius
• B) increasing its mass
• C) increasing its orbital period
• D) All of these are correct.

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Definitions:

Present Value

A calculation that determines the current worth of a future sum of money or stream of cash flows, given a specific rate of return.

Annuity

A fiscal product offering a consistent payout pattern, mainly aimed at supplying funds for individuals in retirement.

Discount Rate

In DCF analysis, the interest rate employed to find out the present value of cash flows expected in the future.

Mutual Fund

An investment vehicle made up of a pool of funds collected from many investors for the purpose of investing in securities such as stocks, bonds, and other assets.