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Which of the following conditions is necessary to hear an echo clearly?
Time interval must be at least 0.1 s
Source of sound must be very strong
Listener must be moving
The reflecting surface must be soft
Time interval must be at least 0.1 s
Practice and solve "Which of the following conditions is necessary to hear an echo clearly?..." for General Science - Previous Year Paper 2026. The correct answer is Option A: Time interval must be at least 0.1 s. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "Which of the following conditions is necessary to hear an echo clearly?..." for General Science - Previous Year Paper 2026. The correct answer is Option A: Time interval must be at least 0.1 s. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.