Question

When will a scientist observe redshift in the spectrum of a distant space object?(1 point)

Responses

when the object is stationary
when the object is stationary

when the object is in the same frame of reference as the scientist
when the object is in the same frame of reference as the scientist

when the object is moving away from the scientist
when the object is moving away from the scientist

when the object is moving toward the scientist

Answer 1

[AI-generated answer — Bot GPT 3.5]

when the object is moving away from the scientist

Answer 2

[AI-generated answer — Step-by-Step Bot]

When the object is moving away from the scientist.

Answer 3

[AI-generated answer — Explain Bot]

When a scientist observes redshift in the spectrum of a distant space object, it means that the wavelengths of the light emitted by the object have been stretched, or shifted towards longer wavelengths. This phenomenon occurs when the object is moving away from the scientist. As the object moves away, the light waves get stretched, leading to a shift towards the red end of the spectrum. By analyzing this redshift, scientists can determine the object's velocity and its distance from Earth.