When a beam of an ordinary White light passes through a Polaroid plate, the intensity of the beam that emerges is ' . A. practically zero B. about 50% of the incident beam C. about one half that of the Incident beam D. about 75% of the incident beam

Q: Green light has a frequency of about 5.3Hz×1014Hz5.3Hz×1014Hz.   1. Using the relationship…

A: The relationship between speed, wavelength, and frequency of light is given by, c=λf......(1)where,…

Q: . Can EM waves travel through a perfect vacuum? Can soundwaves?

A: Electro magnetic wave can travel in perfect vacuum. These waves are different from mechanical wave…

Q: The main difference between a radio wave and a light wave is its   Select one: a. speed. b.…

A: Radio wave and light wave are both electromagnetic waves.

Q: Revi Unpolarized light with intensity 3100 W/m² passes first through a polarizing filter with its…

A: Explanation: By Malus law of intensity, I'=I02cos2θ where I0 is the intensity of unpolarized light.…

Q: . True or False: A continuous spectrum consists of ablending of colors. ___________

A: By the experiment carried out by Newton, he observed dispersion of white light when it passes…

Q: EMW (Electromagnetic waves) are produced by   A. A neutron moves with a velocity of 200 m/s   B.…

A:

Q: Calculate the speed at which the source should be moving away if the red light frequency is observed…

A: When the relative speed between observer and source gets close to the speed of light relativistic…

Q: As the ray travels from air ( n = 1.00) to water (n = 1.33), the critical angel for this transition…

A: Given, Refractive Index of water,μw=1.33Refractive Index of air,μa=1 We have to calculate the…

Q: As the diameter of a laser beam increases O a. The divergence of the beam will remain the same O b.…

A:

Q: A linearly polarized light wave is always a) in x-y plane. b) a transverse wave.…

A: Let an EM wave has an electric field vector E and magnetic field vector B. The electromagnetic wave…

Q: The electric field of an electromagnetic wave in a vacuum is Ey (18.0 V/m) cos((4.88 × 10³) - wt),…

A: wave numberk=2πλwhere,λ is wavelengthRelationship between electric field(E) and magnetic field(B) in…

Q: A laser light which is a monochromatic pass from a denser medium to a rarer medium, As a result a.…

A:

Q: The figure shows a spherical shell with uniform volume charge density p = 1.89 nC/m³, inner radius a…

A:

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz? Assume speed of light…

A: Given data: Frequency (f) = 101.1 MHz Speed of light (c) = 3 × 108 m/s Required: Wavelength (λ)

Q: How fast must you be approaching a red traffic light with wavelength of 675nm for it to appear…

A:

Q: No matter what other colors of light are shining into a person's eyes, what color can they not…

A: answer is option DCyan Because Visible light may be a tiny part of the electromagnetic spectrum, but…

Q: What is the energy in cm¯! of a photon of 500 nm energy that may be observed in electron (UV-VIS)…

A: Given: (a)  wavelength in UV-VIS region, λ=500 nm (b) wavelength of photon in IR region, λ=6 micron…

Q: 1. Consider the following properties of a light wave as it passes from a vacuum to transparent…

A: We have ,  refractive index of vacuum = 1 refractive index of glass = 1.52 i.e, refractive index…

Q: 4. A Lambertian source of radiance 10 W /m² sr is made in the shape of a ring. What is the…

A: .

Q: Why? From fireworks to stars, the color of light is useful in finding out what's in matter. The by…

A: What happens to white light when it passes through a prism?

Q: An X ray and a the red light from a laser     have the same frequency.     are types of…

A: Given: X-ray and red light are produced by a laser.

Q: Calculate the wavelength A2 for visible light of frequency f2 = 6.45×x1014 Hz . Express your answer…

A: λ2=cf2

Q: Determine the frequency of … (GIVEN: 1 m = 109 nm)a. … red visible light (λ = 650 nm)b. … violet…

A:

Q: A) The wave theory of light would predict that shining two different frequencies of light with the…

A:

Q: Explain that light behaves as a wave and as a particle.

A: Answer:-  Light behaves as a wave and as a particle.  Because  Light behaves mainly like a wave but…

Q: What is the wavelength given off by a wave that is moving from n=4 to n=2? What color would you…

A: Given: The initial orbit of the electron is  : n=4 The final orbit of the electron is  : n=2   When…

Q: 65 •• The first excited state of an atom of a gas is 2.85 eV above the ground state. (a) What is the…

A: The first excited state of an atom of a gas is 2.85 eV above the ground state. (a) What is the…

Q: Consider two waves of light, A and B. Wave A has a lower frequency than wave B. Then wave B must…

A: Given data: Two waves of light are A and B A has lower frequency fA < fB

Q: Calculate the observed wavelength of a 650 nm light when it is moving at 0.9c.

A: When the relative speed between observer and source gets close to the speed of light relativistic…

Q: Explain how light can be a self-sustaining wave based on what you know of laws of electromagnetism.

A: Answer An electromagnetic wave can travel through anything they actually needs no medium to…

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.