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dusya [7]
3 years ago
14

In a double-slit experiment, the slits are illuminated by a monochromatic, coherent light source having a wavelength of 507 nm.

An interference pattern is observed on the screen. The distance between the screen and the double-slit is 1.32 m and the distance between the two slits is 0.112 mm. A light wave propogates from each slit to the screen. What is the path length difference between the distance traveled by the waves for the fifth-order maximum (bright fringe) on the screen
Physics
1 answer:
stira [4]3 years ago
5 0

Answer:

The path difference is 2.53 \times 10^{-6} m

Explanation:

Given:

Wavelength of light \lambda = 507 \times 10^{-9} m

Distance between slit and screen D = 1.32 m

Distance between two slit d = 0.112 \times 10^{-3} m

Order of interference n = 5

From the formula of interference of light,

   d\sin \theta = n\lambda

Where d \sin \theta = path difference, n = order of interference

Here we have to find path difference,

 Path difference = 5 \times 507 \times 10^{-9} m

 Path difference = 2.53 \times 10^{-6} m

Therefore, the path difference is 2.53 \times 10^{-6} m

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How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee from 95.0ºC to 45.0ºC? You
bagirrra123 [75]

Answer:

33 gm.

Explanation:

Heat required by coffee in evaporation = m L = m x 560 cals

Heat released by coffee in cooling = m c Δ T = 350 X 1 X 50 = 17500 cals

Heat released by glass cup = 100 x .2 x 50 = 1000 cals ( specific heat of glass is .2 cals per gram per k)

Total heat released = 18500 cals

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m x 560 = 18500

m = 33 gm.

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Can an atom exist without a nucleus
Stolb23 [73]
No. Atom cannot exist without a nucleus. There would be only one part in an atom if nucleus would be deleted and that will be "Electrons", when electrons will be alone they will be just electron not an atom. 

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3 years ago
__________, the best forecasting methods to use are time series models such as moving average. ANSWER Unselected When the future
DochEvi [55]

Answer:

Greetings!

The correct answer is the last one, "When the future level of some variable is seen as a function other than time".

Explanation:

Along other forecasting methods, the moving average finds utility in cases when seasonality is a factor. This term refers to a set of variables unknown to (or uncontrolled by) the observer that influence the series model in some way.

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8 0
3 years ago
A cyclist is riding a bicycle at a speed of 22 mph on a horizontal road. The distance between the axles is 42 in., and the mass
stealth61 [152]

Answer:

The shortest distance is  S = 24.86 ft

Explanation:

The free body diagram of this question is shown on the first uploaded image

From the question we are told that

   The speed of the bicycle is v_b = 22\ mph = 22 * \frac{5280}{3600}   =  32.26 ft/s

     The distance between the axial is  d = 42 \ in

The mass center of the cyclist and the bicycle is m_c = 26 \ in  behind the front axle

The mass center of the cyclist and the bicycle is m_h = 40 \ in above the ground

   For the bicycle not to be thrown over the

     Momentum about the back wheel must be zero so

                \sum _B = 0

=>             mg (26) = ma(40)

=>             a = \frac{26}{40} g

Here  g = 32.2 ft/s^2

     So     a =  \frac{26}{40} (32.2)

             a =  20.93 ft/s^2

Apply the equation of motion to this motion we have

       v^2 = u^2 + 2as

 Where  u = 32.26 ft /s

             and v = 0 since the bicycle is coming to a stop

        v^2 = (32.26)^2 - 2(20.93) S

=>      S = 24.86 ft        

                 

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