A golden eagle dives vertically downwards towards its prey emitting a screech of…

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A golden eagle dives vertically downwards towards its prey emitting a screech of frequency 870 Hz. If the eagle's prey hears the screech at a frequency of 1025 Hz, the best estimate for the eagle's speed is (1) 46 ms−146 \text{ ms}^{-1} (2) 50 ms−150 \text{ ms}^{-1} (3) 59 ms−159 \text{ ms}^{-1} (4) 63 ms−163 \text{ ms}^{-1}

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