Waves

Which of these properties is NOT shared by both sound and light waves?

If a wave has a frequency of $100 \text{ Hz}$, how many waves pass a point in one minute?

What is the speed of an electromagnetic wave in a vacuum?

Which property of a wave refers to the time taken for one complete oscillation?

A sound wave travels from air into a steel pipe. In steel, the speed of sound is much higher than in air. What happens to the wavelength of the sound wave as it enters the steel?

When plane waves encounter a corner of a barrier, they bend around it into the region behind the barrier. This is an example of:

Two points on a wave are exactly half a wavelength apart. What is the phase difference between these two points?

A wave has a wavelength of $0.5 \text{ m}$. How many waves are contained in a distance of $10 \text{ m}$?

If the speed of a water wave increases as it enters deeper water, but its frequency remains the same, how does its wavelength change?

Which of the following is a characteristic of all electromagnetic waves but NOT sound waves?

Which of the following describes the focal point of a converging lens?

A virtual image is one that:

What is the main reason light bends when it moves from one medium to another?

If the refractive index of water is $1.33$, what is the critical angle for a water-air boundary?

A ray of light passes through the first principal focus $F$ of a thin converging lens before striking the lens. According to the standard rules for constructing ray diagrams, how does the ray travel after passing through the lens?

An object is placed 30 cm from a converging lens with a focal length of 15 cm. What is the magnification of the image?

If the angle of incidence in glass is exactly equal to the critical angle, what is the angle of refraction in air?

A ray of light is incident at $60^{\circ}$ on one face of a glass prism of refractive index $\sqrt{3}$. What must be the angle of the prism so that the ray suffers minimum deviation?

An object is placed at a distance $u$ from a converging lens. When a glass slab of thickness $t$ and refractive index $n$ is placed between the object and the lens, the image shifts. By how much and in what direction does the object appear to move?

A ray of light travels from air into a triangular glass prism. As the angle of incidence increases from $0^{\circ}$ to $90^{\circ}$, how does the angle of deviation change?

Which of the following electromagnetic waves has a higher frequency than Microwaves but a lower frequency than Visible light?

Which of these is a correct use of Ultraviolet radiation?

Which region of the electromagnetic spectrum is used to broadcast AM and FM radio signals?

Which of the following is an effect of ionizing radiation like Gamma rays on living tissue?

The time taken for light to travel from the Sun to the Earth is approximately 500 seconds. Using the speed of light, what is the distance from the Sun to the Earth?

Which electromagnetic wave is primarily responsible for the tanning of human skin?

What type of wave is an electromagnetic wave?

In a Young's double-slit experiment using EM radiation, which radiation would produce the widest spacing between interference fringes for a given slit separation?

The speed of light in a certain plastic is $2.0 \times 10^{8}$ m/s. What is the critical angle for light traveling from this plastic into air?

Which of these describes the 'skin effect' in the context of EM waves and metals?

Which state of matter typically allows sound to travel at the slowest speed?

What component of a sound wave is represented by the 'height' of the wave from the center line on a displacement-time graph?

Which of these devices is specifically used to see the waveform of a sound signal?

If a tuning fork vibrates $256$ times in one second, what is its frequency?

An ultrasound probe is placed against a solid block to detect internal flaws. The probe emits a pulse and receives two echoes: one from a small defect inside the block and one from the back wall. The resulting trace on an oscilloscope is shown below. Which interval on the oscilloscope represents the time taken for the sound to travel from the defect to the back wall and back to the defect?

A sound wave travels through air from left to right. The diagram shows the path of a single air molecule as it vibrates due to the passage of the wave. The molecule moves from its equilibrium position $O$ to point $X$, then back through $O$ to point $Y$, and finally returns to $O$. Which of the following correctly describes the type of wave and the property represented by the distance $OX$?

When comparing two sound waves on an oscilloscope, wave X has a larger vertical displacement from the center line than wave Y. What can be concluded?

A ship is $510\text{ m}$ from a vertical cliff. It blasts a foghorn and hears the echo. If the air temperature is such that the speed of sound is $340\text{ m/s}$, but there is a $10\text{ m/s}$ wind blowing directly from the cliff toward the ship, how long after the blast is the echo heard?

A speaker emits a $170\text{ Hz}$ note. At a certain distance, the sound intensity is measured. If the speaker then emits a $340\text{ Hz}$ note with the same power, which of the following is true in air ($v = 340\text{ m/s}$)?

A sound wave travels from air into water. Which of the following stays exactly the same?