Wave Reflection and Transmission
Physics ⇒ Waves and Sound
Wave Reflection and Transmission starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Wave Reflection and Transmission.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A sound wave strikes a boundary between two media. If most of the wave energy is reflected, what can you infer about the difference in the properties of the two media?
A student claps their hands in front of a large wall and hears an echo 2 seconds later. If the speed of sound is 340 m/s, how far is the wall from the student?
A wave has a speed of 300 m/s and a frequency of 100 Hz in medium A. What is its wavelength in medium A?
A wave pulse is sent down a rope attached to a wall. Describe what happens when the pulse reaches the wall.
A wave pulse travels from a thin rope to a thick rope. What happens to the transmitted and reflected pulses?
A wave traveling along a rope meets a fixed end. What happens to the wave?
Describe what happens to the speed and wavelength of a sound wave as it passes from air into water.
Explain why echoes are heard in large empty halls.
If a wave is incident at 45° to a surface, at what angle will it be reflected?
If the angle of incidence of a wave on a flat surface is 30°, what is the angle of reflection?
If the speed of sound in air is 340 m/s and in water is 1500 m/s, what happens to the wavelength of a 170 Hz sound as it enters water from air?
What is meant by the reflection of a wave?
A light wave strikes a glass surface at an angle of 60° to the normal. If the angle of reflection is measured to be 60°, what law does this observation confirm?
A sound wave with a frequency of 500 Hz travels from air (speed = 340 m/s) into a solid where the speed of sound is 1700 m/s. Calculate the wavelength of the sound in the solid.
A student observes that when a wave pulse reaches a boundary between two ropes of different densities, part of the energy is reflected and part is transmitted. Explain why not all the energy is reflected or transmitted.
A water wave travels from deep water into shallow water. Explain how the speed, wavelength, and direction of the wave change as it crosses the boundary.
A wave pulse traveling along a string encounters a boundary where the string is attached to a ring that is free to move up and down. Describe the characteristics (inversion or not) of the reflected pulse and explain why.
A sound wave with a frequency of 400 Hz travels from air (speed = 340 m/s) into a medium where the speed of sound is 1360 m/s. Calculate the ratio of the wavelength in the new medium to the wavelength in air.
A student sends a wave pulse down a rope attached to a wall. The pulse returns inverted. Explain why the inversion occurs and what this tells you about the boundary conditions at the wall.
A water wave approaches a boundary at an angle of 30° to the normal and is partially reflected and partially transmitted. If the speed of the wave in the second medium is less than in the first, describe how the direction of the transmitted wave changes relative to the normal.
