A Black Hole with a Mass of 10⁹ MSᵤn Brightens

question 56

Multiple Choice

A black hole with a mass of 10⁹ MSᵤn brightens rapidly and increases its luminosity by a factor of two.Approximately how long would it take for an observer on Earth to see the black hole reach its maximum brightness?

• A) 3 minutes
• B) 3 hours
• C) 3 days
• D) 3 weeks

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Definitions:

Gear Shift Lever

The component in a vehicle that the driver uses to select gears manually in a transmission system.

Detent Spring

A component used in mechanisms to keep an object in a predetermined position until enough force is applied to move it.

Yoke Seal Race

A sealing surface within a yoke mechanism, where a seal runs to prevent fluid or lubricant leakage.

Crocus Cloth

A fine-grained abrasive cloth used for polishing metal surfaces to a smooth finish, often employed in metalworking and finishing tasks.