The Main Problem That Physicists Had in Understanding Blackbody Radiation

question 51

Multiple Choice

The main problem that physicists had in understanding blackbody radiation before Planck's work was:

• A)Blackbody radiation came from objects that were not actually black.
• B)The classically predicted frequency spectrum showed an infinitely large peak at low frequencies.
• C)The classically predicted frequency spectrum showed an infinitely large peak at high frequencies.
• D)The classically predicted frequency spectrum had a minimum intensity rather than a maximum as observed.
• E)The classically predicted frequency spectrum had a maximum intensity that decreased with temperature, rather than increasing as observed.

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Definitions:

Gases

State of matter consisting of particles that have neither a defined volume nor shape, often able to expand freely to fill any space.

Plasmodesmata

Microscopic channels allowing for the transport and communication between plant cells through their cell walls.

Guard Cells

Specialized cells surrounding stomata in plant leaves and stems, regulating gas exchange and water loss by opening and closing the stomatal aperture.

Phytoremediation

The use of plants to remove, transfer, stabilize, or destroy contaminants in soil, water, or air, as an eco-friendly remediation technique.