A Clock with a Luminous Dial Is Moving Toward You

question 324

Multiple Choice

A clock with a luminous dial is moving toward you at a speed that is a large fraction of the speed of light.What will you observe?

• A) The light emitted by the clock will be shifted toward longer wavelengths compared to those seen by an observer moving with the clock.
• B) The light from the clock is approaching you at speed c.
• C) The clock runs fast compared to an identical clock at rest in your hand.
• D) The clock appears thicker, front to back, than the identical clock in your hand.

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Definitions:

Past Participle

The form of a verb, typically ending in -ed in English, used to form perfect tenses and passive forms.

Carbide Filament

A type of filament used in light bulbs, made from carbon and tungsten, known for its durability and high melting point.

Past Participle

A grammatical term referring to a form of a verb, typically used to indicate a completed action or condition, often used in perfect tenses.

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Plants that have absorbed an excessive amount of water, often leading to wilting or disease.