Identify The Statement That Correctly Describes Light And How It Travels?

What is the statement that correctly describes how light travels?

Light cannot travel through a vacuum and travels slower when the light source is moving away. Light can travel in a vacuum and the speed at which it travels changes if the source is moving. Light travels at a constant speed through a vacuum even if the light source is moving.

What correctly describes light?

In its simplest form quantum theory describes light as consisting of discrete packets of energy called photons. However neither a classical wave model nor a classical particle model correctly describes light light has a dual nature that is revealed only in quantum mechanics.

How does light travel short answer?

In some materials such as metal the atoms absorb some of the photons so light does not pass through them. These materials are opaque. In other materials such as glass the atoms cannot absorb the photons and light passes through them. These materials are transparent.

Which statement is correct light in a vacuum travels at the same speed even if the light source is moving?

Answer Expert Verified The correct statement is: Light can travel in a vacuum and its speed is constant if the source is moving or stationary. Light isn’t effected by a vacuum.

Which of the following correctly describes the statement speed of light is constant?

The speed of light is constant in vacuum. … This is by definition a constant because the international unit meter for length is defined to be the distance light travels in vacuum in 1/299792458 of a second. 2) The speed of light traveling in some medium different from Minkowski vacuum.

Which statement best explains the difference between light Travelling through a vacuum and light waves traveling through a medium?

Which statement best explains the difference between light waves traveling through a vacuum and light waves traveling through a medium? light waves traveling through a vacuum travel faster than light waves traveling through a medium.

Which statement best characterizes light?

Which statement BEST characterizes light? It is an electromagnetic energy wave composed of fluctuating electric and magnetic fields moving at a very fast rate. It is the first step of sensation.

Which of these describes how light travel through an empty space?

Q. Which of these describes how light travels through an empty space? It travels straight but may change direction to avoid objects. It changes direction often even if there are no objects.

Which statement correctly compares the speed of light?

Which statement correctly compares the speed of light? The speed of light in glass is slower than the speed of light through space.

How does a light travel?

Light exhibits characteristics of both waves and particles the latter of which are described as packets of energy called photons. These waves or photons travel in narrow beams called rays. … When light rays reach an object provided the object is opaque the rays do not pass through it.

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How the light travels in different ways?

Light can travel in three ways from a source to another location: (1) directly from the source through empty space (2) through various media (3) after being reflected from a mirror.

How does light travel in all directions?

Light can be refracted.

Light always travels in straight lines. But when it passes from one medium into another it changes direction slightly. Refraction occurs because light travels at different speeds through different materials. When light passes through air into water for example it slows down.

Does all light travel at the same speed in a vacuum?

Generally speaking we say that light travels in waves and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum. We call this the “speed of light” nothing can move faster than the speed of light.

Which of the following characteristics is the same for every color of light in a vacuum?

It is absolutely correct that in vacuum all colors of light travel with same speed and this is why a white ray travels through the vacuum without suffering any dispersion…

Which color of light travels the fastest in a vacuum?

red

Violet travels the slowest so it is on the bottom and red travels the fastest so is on the top. This is because what is called the index of refraction (the ratio of the speed of light in a vacuum to the speed of light in a material) is increased for the slower moving waves (i.e. violet).

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Which of the following is the speed of light?

Light traveling through a vacuum moves at exactly 299 792 458 meters (983 571 056 feet) per second. That’s about 186 282 miles per second — a universal constant known in equations and in shorthand as “c ” or the speed of light.

What travels at the speed of light?

massless photons

Anything massless would travel in a vacuum at the invariant speed which is known as the vacuum speed of light. Light itself consists of massless photons which travel at this speed in a vacuum.

What do you know about speed of light?

speed of light speed at which light waves propagate through different materials. In particular the value for the speed of light in a vacuum is now defined as exactly 299 792 458 metres per second.

What are the differences between light waves and sound waves quizlet?

Light waves DO NOT require a medium they travel fastest in empty space Sound waves REQUIRE a medium they travel fastest in dense material like solids. Sound is a longitudinal wave. Define and give an example of reflection for a light wave and a sound wave. … Light does not require a medium through which to travel.

Which of the following best describes a difference between light waves and sound waves?

The differences between light and sound are as follows: … Light waves are transverse while sound waves are longitudinal. Light waves can travel in vacuum. Sound waves require a material medium to travel and hence cannot travel in vacuum.

How are sound and light alike How are they different?

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength freqency and amplitude. … Sound can only travel through a medium (substance) while light can travel through empty space. Sound is a form of mechanical energy caused by vibrations of matter.

Which statement best describes the property of light waves?

Answer: Light waves are refracted by some materials.

Which of the following statements describes a property of light according to the ray model of light?

Which of the following is approximately equal to the currently accepted value for the speed of light? the light source. d. size of the surface area which the light strikes and the distance from the light source. .

What best describes the characteristics of white light?

White light is defined as the complete mixture of all of the wavelengths of the visible spectrum. This means that if I have beams of light of all of the colors of the rainbow and focus all of the colors onto a single spot the combination of all of the colors will result in a beam of white light.

Which statement describes the scattering of light?

Scattering of light is the phenomenon in which light rays get deviated from its straight path on striking an obstacle like dust or gas molecules water vapours etc.

How will you show that light travels in a straight line?

Light travels in a straight line can be observed by keeping an object in the path of light. In an atmosphere which is bit dusty we can see light traveling in a straight line. Light emerging from the torch train and lamps always travel in a straight line.

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How can energy travel through empty space?

Unlike conduction and convection radiation does not need matter to transfer heat. Energy is radiated from the sun through the vacuum of space at the speed of light. When this energy arrives at Earth some of it is transferred to the gases in our atmosphere.

What happens when light from the sun passes through any?

What happens when light from the Sun passes through any type of matter? The light slows down. … The speed of light in glass is slower than the speed of light through space.

Which statement best explains a difference between the interaction of light?

Which statement best explains a difference between the interaction of light with clear glass and the interaction of light with silver metal? Light slows down when it interacts with glass but not when it interacts with metal. Light slows down when it interacts with metal but not when it interacts with glass.

What happens to the speed of light when it travels from air to water?

When light travels from air into water it slows down causing it to change direction slightly. This change of direction is called refraction. When light enters a more dense substance (higher refractive index) it ‘bends’ more towards the normal line.

How does light travel in a straight line ks2?

How can I teach my students that light travels in a straight line? Light travels in a straight line from a light source and if an object passes in front of it the light can be blocked.

How does light travel by Brainly?

Light travels as a wave. But unlike sound waves or water waves it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum—a completely airless space. … It speeds through the vacuum of space at 186 400 miles (300 000 km) per second.

How does light travel in the air?

Light travels in waves and we call this traveling propagation. … Reflection is when the waves bounce off a surface and change direction like when they hit a mirror or pool of water. Diffraction spreads out light waves an example of this is water vapor in the air diffracting light from the sun to create a rainbow.

Why does light travel at the speed of light?

That’s when the physicist James Clerk Maxwell accidentally invented light. … Ergo light is made of electromagnetic waves and it travels at that speed because that is exactly how quickly waves of electricity and magnetism travel through space.

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