The Intense X-Rays Emitted by a Suspected Black Hole Are

question 119

Multiple Choice

The intense X-rays emitted by a suspected black hole are generated by what physical mechanism?

• A) blueshifting of light emitted by hot gas into the X-ray region of the electromagnetic spectrum by the extreme speed of the gas moving into the black hole
• B) induced emission in atoms by the intense gravitational field as material moves toward the black hole
• C) compressional heating as material moves into the black hole
• D) deceleration of matter as it abruptly stops at the event horizon of the black hole

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Definitions:

Px/Py

A ratio indicating the price of one good (Px) relative to the price of another good (Py), used in economics to analyze consumer choice and purchasing power.

Indifference Curves

Graphical representations used in microeconomics to show combinations of two goods that give the consumer the same level of satisfaction.

Concave

A shape or curve that is rounded inward, like the inside of a circle or sphere, often used in the context of mathematical functions or geometric figures.

Convex

A shape or function that curves outward, where the line connecting any two points on it lies above or on the curve.