Physicsmedium · Past Paper
Two sound waves have frequencies in the ratio 2:3. What will be the ratio of their time periods?
A2:3
B3:2
C4:9
D1:1
✓ Correct Answer: B — 3:2
Since T = 1/f, the time periods are inversely proportional to frequency. The ratio becomes 3:2.
Share this question
More from Physics
- If a ball is thrown vertically upwards with a velocity of 40 m/s, what is the distance covered in the last second of its upward journey?
- A SONAR device on a ship sends a signal to the ocean floor and receives an echo 4 seconds later. If the speed of sound in water is 1500 m/s, what is the depth of the ocean?
- The velocity-time graph of a body is a straight line parallel to the time axis. This means the body has:
- If the mass of Earth is 6 x 10^24 kg and its radius is 6.4 x 10^6 m, find 'g'.
- A body has an initial velocity of 5 m/s and moves with an acceleration of 2 m/s^2. Its velocity after 10s is: