Science & Technology·Prelims Questions
Doppler Effect — Prelims Questions
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Version 1Updated 9 Mar 2026
Q1medium
Which of the following phenomena is NOT an application of the Doppler Effect?
Q2easy
Consider the following statements regarding the Doppler Effect: 1. It applies only to sound waves, not electromagnetic waves. 2. Redshift indicates a source moving away from the observer. 3. The perceived frequency increases when the source and observer move towards each other. Which of the statements given above is/are correct?
Q3easy
An ambulance siren sounds higher in pitch as it approaches and lower as it moves away. This phenomenon is best explained by:
Q4medium
In the context of astronomy, what does a 'blueshift' in the light from a distant galaxy indicate?
Q5medium
Which of the following statements about Doppler Weather Radar is correct?