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For many years, experiments showed that light had wave-like properties. For this reason, scientists described light

as a wave. More recently, experiments produced data that could not be explained by the wave theory of light. The

idea of particle properties was introduced

Why did the theory of light change over time?

O The theory was too old and needed to be updated

New scientists did not agree with the older theory

O The scientific question changed, so the theory had to change.

O Repeated experimentation introduced new discoveries.

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Answer:

Repeated experimentation introduced new discoveries.

Explanation:

Science is not a static body of  knowledge, scientific theories change as new evidence emerges from repeated experiments.

For many years, the wave theory of light was generally held by almost all scientists.

Further experiments such as photoelectric effect and Compton effect lent credence to the the particle theory of light, hence the answer

Answer:

D

Explanation:

Repeated experimentation introduced new discoveries.