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4 years ago

What best describes the relationship between wavelength and frequency in an electromagnetic wave? always equal

Physics

2 answers:

Anit [1.1K]4 years ago

7 0

Answer: The frequency is inversely related to wavelength in electromagnetic wave.

Explanation:

Relationship between the frequency and wavelength of wave is given by the equation:

$\nu=\frac{c}{\lambda}$

where,

$\nu$ = Frequency of the wave

c = speed of light = $3\times 10^8m/s$

$\lambda$ = Wavelength of the wave

From the above relation, it is visible that frequency is inversely related to the wavelength of the wave.

Higher the frequency, low will be the wavelength of the wave and vice-versa.

Anit [1.1K]4 years ago

4 0

Wavelength and frequency in electromagnetic wave is
V=F lemda
They show that they are directly proportional with each other

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A Micro –Hydro turbine generator rotor is accelerating uniformly from an angular velocity of 610 rpm to its operating angular ve

solniwko [45]

Answer:

The rotor's angular velocity is 82.73rad/s

Explanation:

It is a curvilinear movement of a constant radius. If there is uniform angular acceleration, then it is a circular motion with constant acceleration, whose equations are analogous to that of the translational motion.

Calculating the initial velocity of the rotor, V1 in rad/s

V1 = 610rev/minute × 6.28 × 1miute/60secs

V1 = 63.85rad/s

Using kinematic equation to calculate the final velocity of the rotor

Given:

Angular acceleration = 5.9rad/s^2

Time,t= 3.2seconds

V2 = V1 + a × t

V2 = 63.85 + (5.9)× (3.2)

V2 = 63.85 + 18.88

V2 = 82.73rads/s

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3 years ago

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A particle with charge q and momentum p, initially moving along the x-axis, enters a region where a uniform magnetic field* B=(B

VMariaS [17]

Answer:

Magnitude of momentum = q × B0 × [d^2 + 2L^2] / 2d.

Explanation:

So, from the question, we are given that the charge = q, the momentum = p.

=> From the question We are also given that, "initially, there is movement along the x-axis which then enters a region where a uniform magnetic field* B = (B0)(k) which then extends over a width x = L, the distance = d in the +y direction as it traverses the field."

Momentum,P = mass × Velocity, v -----(1).

We know that for a free particle the magnetic field is equal to the centrepetal force. Thus, we have the magnetic field = mass,.m × (velocity,v)^2 / radius, r.

Radius,r = P × v / B0 -----------------------------(2).

Centrepetal force = q × B0 × v. ----------(3).

(If X = L and distance = d)Therefore, the radius after solving binomially, radius = (d^2 + 2 L^2) / 2d.

Equating Equation (2) and (3) gives;

P = B0 × q × r.

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3 years ago

What is the speed of light in water?

Fudgin [204]

Answer:

Speed of the light in water= 225,000 km/s

Explanation:

At the speed with which light propagates through a homogeneous and transparent medium, it is a constant characteristic of that medium, and therefore, it changes from one medium to another.

Due to its enormous magnitude, the measurement of the speed of light has required the invention of ingenious procedures that will overcome the inconvenience of short land distances in relation to such extraordinary speed.

Astronomical methods and terrestrial methods have been giving ever closer results. At present, the value c = 299,792,458 km / s is accepted for the speed of light in a vacuum. In any transparent material medium the light propagates with a speed that is always lower than c. Thus, for example, in water it does so at around 75% of the speed of light in a vacuum: about 225,000 km / s.

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3 years ago

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Answer:

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E can be calculated at distance 0.2m away from the centre of the disk.

Put z = 0.3m and all other values in the equation,

E can be calculated at distance 0.3m away from the centre of the disk

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AnnZ [28]

It makes clay minerals.

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3 years ago

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