Previous Year Questions

Practice Questions

Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.

Displaying 481 - 485 of 1956
Medium
. SOF National Science Olympiad (NSO/ISO) · Set D · 2025 . Sample
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Q. 325
A sound wave has a frequency of 250 Hz and a wavelength of 1 m. Find its speed.
Hard
. SOF National Science Olympiad (NSO/ISO) · Set D · 2026 . Sample
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Q. 326
What is the minimum distance required between a sound source and a reflecting surface for a human ear to hear a distinct echo?
Medium
. SOF National Science Olympiad (NSO/ISO) · Set A · 2026 . Sample
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Q. 327
A sound wave has a frequency of 340 Hz and a wavelength of 0.5 m. Find its speed.
Easy
. SOF National Science Olympiad (NSO/ISO) · Set C · 2025 . Sample
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Q. 328
A sound wave has a frequency of 250 Hz and a wavelength of 1.5 m. Find its speed.
Hard
. SOF National Science Olympiad (NSO/ISO) · Set A · 2024 . Sample
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Q. 329
A sound wave has a frequency of 500 Hz and a wavelength of 0.5 m. Find its speed.