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3 years ago

What is mean by refleated ray

Physics

2 answers:

krek1111 [17]3 years ago

8 0

Answer:

Reflected ray. A ray of light or other form of radiant energy which is thrown back from a nonpermeable or nonabsorbing surface; the ray which strikes the surface before reflection is the incident ray.

Archy [21]3 years ago

6 0

Answer:

In optics a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow.[1][2] Rays are used to model the propagation of light through an optical system, by dividing the real light field up into discrete rays that can be computationally propagated through the system by the techniques of ray tracing. This allows even very complex optical systems to be analyzed mathematically or simulated by computer. Ray tracing uses approximate solutions to Maxwell's equations that are valid as long as the light waves propagate through and around objects whose dimensions are much greater than the light's wavelength. Ray theory (geometrical optics) does not describe phenomena such as diffraction, which require wave theory. Some wave phenomena such as interference can be modeled in limited circumstances by adding phase to the ray .

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To find the answer, we need to know about the magnetic field inside the solenoid.

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Mathematically, the expression of magnetic field inside the solenoid= μ₀×n×I

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Here, n = 290/32cm or 290/0.32 = 906

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2 years ago

Two identical horizontal sheets of glass have a thin film of air of thickness t between them. The glass has refractive index 1.4

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Answer:

the wavelength λ of the light when it is traveling in air = 560 nm

the smallest thickness t of the air film = 140 nm

Explanation:

From the question; the path difference is Δx = 2t (since the condition of the phase difference in the maxima and minima gets interchanged)

Now for constructive interference;

Δx= $(m+ \frac{1}{2} \lambda)$

replacing ;

Δx = 2t ; we have:

2t = $(m+ \frac{1}{2} \lambda)$

Given that thickness t = 700 nm

Then

2× 700 = $(m+ \frac{1}{2} \lambda)$ --- equation (1)

For thickness t = 980 nm that is next to constructive interference

2× 980 = $(m+ \frac{1}{2} \lambda)$ ----- equation (2)

Equating the difference of equation (2) and equation (1); we have:'

λ = (2 × 980) - ( 2× 700 )

λ = 1960 - 1400

λ = 560 nm

Thus; the wavelength λ of the light when it is traveling in air = 560 nm

For the smallest thickness $t_{min} ; \ \ \ m =0$

∴ $2t_{min} =\frac{\lambda}{2}$

$t_{min} =\frac{\lambda}{4}$

$t_{min} =\frac{560}{4}$

$t_{min} =140 \ \ nm$

Thus, the smallest thickness t of the air film = 140 nm

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4 years ago

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3 years ago

Suppose our apparatus will only allow us to distinguish the first order bright fringe from the central bright spot if they are s

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Answer:

λ = 8.716 mm

Explanation:

Given:

- d = 10 cm

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Find:

- Find the shortest wavelength of light for which this apparatus is useful

Solution:

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Where,

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m: order number.

- Since this apparatus only shows the first order light so m =1

- the shortest possible wavelength corresponds to:

d*sin(Q) = λ

λ = 0.1*sin(5)

λ = 8.716 mm

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Akimi4 [234]

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3 years ago

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What is mean by refleated ray​

What is mean by refleated ray