Medium General Knowledge Class 11 Level 5

What does Doppler effect mean?

Doppler effect का अर्थ क्या है?

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Correct Answer

A. source और observer की relative motion से frequency बदलना / Change in frequency due to relative motion of source and observer

Explanation

Step 1: Identify the wave phenomenon. Step 2: When source or observer moves the observed frequency can change. Step 3: Remember Doppler effect with changing siren sound.

Step 1: wave phenomenon पहचानें। Step 2: जब source या observer move करते हैं तो observed frequency बदल सकती है। Step 3: Doppler effect को siren sound change से याद रखें।

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