Choose the BEST answer to the following:
All parts of a laser beam have the same
(a) frequency.
(b) phase.
(c) speed.
(d) All of these.
Want to see the full answer?
Check out a sample Q&A here
Related Physics Q&A
Find answers to questions asked by students like you.
Q: What happens to light when it falls upon a material that has a natural frequency above or below the…
A: When light falls upon a material that has a natural frequency equal to the frequency of light…
Q: what happens to light when it falls upon a material that has natural frequency above or below to…
A: Light will get reflected back to the same medium when the frequency of light is lower or higher than…
Q: what happens to light when it falls upon a material that has natural frequency equal to frequency of…
A: When natural frequency of the material is equal to the frequency of light at which it will excite,…
Q: When does a light beam have only a single frequency?
A: A light beam can never have only one frequency even a photon never has only one frequency. These…
Q: When sunlight enters the earth's atmosphere, state which color of light is scattered (i) the most…
A: When sunlight enters the earth’s atmosphere, violet colour is scattered the most and red the least…
Q: When sunlight enters the earth's atmosphere, state which color of light is scattered (i) the most…
A: The particles of earth's atmosphere have size equivalent to wavelength of blue color of light. Since…
Q: What happens to light when it falls upon a material that has a natural frequency equal to the…
A: Click to see the answer
Q: What happens to light when it falls upon a material that has a natural frequency equal to the…
A: When the natural frequency equal to the frequency of light, then resonance takes place.
Q: The minimum value of the refractive index is: zero 1 less than 1 but not…
A: To find the minimum value of the refractive index.
Q: What color does red cloth appear to be when illuminated by sunlight? By light from a neon sign? By…
A: The color of the red cloth appears to be when illuminated by sunlight is red.
Q: What color does red cloth appear to be when illuminated by sunlight? By light from a neon sign? By…
A: The color of the red cloth appear to be when illuminated by sunlight is red.
Q: How are sound waves and light waves alike and different?
A: Similarity in Sound and light waves: Both the light and sound waves can transfer of energy. Both…
Q: Light has been argued to be a wave and then a particle, and then back again. Does this indicate that…
A: According to the corpuscular theory Newton concluded that light is a group of particle and at the…
Q: Why do radio waves diffract around buildings, while light waves do not?
A: The amount of diffraction generally depends on the wavelength of the wave and the size of the…
Q: Why do radio waves diffract around buildings, while light waves do not?
A: radio waves diffracts more than the light waves
Q: Red light is (higher, lower) in frequency than violetlight.
A: Wavelength of red light Wavelength of violet light
Q: Why does light bend when it passes thru different materials?
A: According to question: Light bends only in a medium, i.e light bends as a consequence of interacting…
Q: Does light travel faster through the lower atmosphere or through the upper atmosphere?
A: Given: Light travelling in a medium
Q: Does light travel faster through the lower atmosphere or through the upper atmosphere?
A: Speed of light
Q: What is the difference between reflection and refraction?
A: Difference between Reflection and refraction is given below :
Q: Refraction changes the of water) of a wave. (think about light entering a bucket O neither speed or…
A: When а wаve trаvels frоm оne medium tо аnоther medium, the wave сhаnges its direсtiоn…
Q: What Is The Principle Of Reversibility of light?
A: The principle of reversibility of light states that light follows the same path if the direction of…
Q: How is the fact that an electromagnetic wave in space never slows down consistent with the…
A: Fact that an electromagnetic wave in space never slows down consistent with the conservation of…
Q: What type of experimental evidence indicates that light is a wave?
A: The light has both the wave and particle characters. The wave character of light is associated with…
Q: What type of experimental evidence indicates that light is a wave?
A: Interference and diffraction experiments are evidence that indicates light is a wave nature.…
Q: Why does the color of sunsets vary from day to day?
A: The scattering of light is process under which any light rays deflect from its regular path to…
Q: Why are light waves able to travel through a vaccum whereas sound waves cannot?
A: Speed of sound: The speed of sound is the distance travelled by a sound wave per unit of time. The…
Q: Which of these is true of light waves?
A: Click to see the answer
Q: Which has the greatest energy among the color in a rainbow
A: Rainbow has seven colors which are : violet, indigo, blue, green, yellow, orange, red Energy is…
Q: Which characteristic of light remains unchanged when it travels from vacuum to some medium?
A: The velocity and wavelength changes as the medium changes. The frequency remains constant if the…
Q: The violet light is bent more than red light. Why?
A: Click to see the answer
Q: A friend says, in a profound tone, that light is the only thing we can see. Is your friend correct?
A: In the electromagnetic spectrum, we can only see the frequencies which lie in the visible range.
Q: Why are sound waves invisible?
A: Sound waves are not always invisible. Sound is simply the ordered vibration of matter. Any time you…
Q: Will light change direction toward or away from the perpendicular when it goes from air to water?…
A: Air to water As the light travels from rarer medium to the denser medium, the rays of light deviate…
Q: Will light change direction toward or away from the perpendicular when it goes from air to water?…
A: Refractive index of air = 1 Refractive index of water = 1.33 Refractive index of glass = 1.5
Q: Will light change direction toward or away from the perpendicular when it goes from air to water?…
A: The light bends away from the normal when light is incidented from a denser medium to a rarer medium…
Q: Name the high energetic invisible electromagnetic wave which helps in the study of structure of…
A: The electromagnetic wave which helps in the study of structure of crystals is X-rays.
Q: Which one of the following colors of visible light has the highest frequency? Yellow. Red. Green.…
A: The visible light spectrum arranged in the order of increasing frequency is given by…
Q: What color light is transmitted through a piece of red glass?
A: When white light falls on a piece of red glass then the only red color will be transmitted through…
Q: What color light is transmitted through a piece of red glass?
A: When an electromagnetic waves incident on an object that composes all the seven color then all the…
Q: What is the principal difference between a radio wave and light?
A: Both radio waves and light are electromagnetic waves; their main difference is their frequency.…
Q: Why are electromagnetic waves considered to be transverse waves if they are not mechanical waves (do…
A: The electromagnetic waves, are not mechanical waves, as they do not need any medium for their…
Q: Which travels more slowly in glass, red light or violet light?
A: The violet light bends more than red light.
Q: Which travels more slowly in glass , red light or violet light?
A: White light is a combination of all colours, using prism white light from our Sun can be separated…
