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1 year ago

what principle is responsible for alternating light and dark bands when light passes through two or more narrow slits?

1 answer:

7 0

The superposition principle is responsible for alternating light and dark bands when light passes through two or more narrow slits.

The intensity pattern that appears on the lit screen is determined by the superposition principle. When the difference in pathways from the two slits to a location on the screen equals an integral number of wavelengths (0,λ,2λ ,...), constructive interference takes place.

The fact that the two waves' crests follow different paths ensures that they do. A distinctive pattern of brilliant and dark fringes is seen when monochromatic light illuminates a distant screen after passing through two small openings. The superposition of overlapping light waves coming from the two slits results in this interference pattern.

Learn more about superposition principle here;

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Two identical capacitors are connected parallel. Initially they are charged to a potential V0 and each acquired a charge Q0. The

MrRa [10]

Answer:

Explanation:

capacitance of each capacitor

C₀= Q₀ / V₀

V₀ = Q₀ / C₀

New total capacitance = C₀ ( 1 + K )

Common potential

= total charge / total capacitance

= 2 Q₀ / [ C₀ ( 1 + K ) ]

2 V₀ / ( 1 + K )

b )

Common potential = 2 x V₀ / ( 1 + 7.8 )

= .227 V₀

charge on capacitor with dielectric

= .227 V₀ x 7.8 C₀

= 1.77 V₀C₀

= 1.77 Q₀

Ratio required = 1.77

6 0

3 years ago

How does the height the ball is released affect the amount of potential energy

aleksley [76]

The potential energy is directly proportional to the height.
If you double the height you double the potential energy.

5 0

3 years ago

In an insulated container, 0.50 kg of water at 80°C is mixed with 0.050 kg of ice at −5.0°C. After a while, all the ice melts, l

Phoenix [80]

Explanation:

When ice tends to absorb heat energy then it will change into liquid state. Now, change in the temperature of cold water $dT = T_{f} - 0^{o}C$ = $T_{f}$

Change in the temperature of original water in the container $dT' = 80 -T_{f
}$

Latent heat of melting of ice L = 80 cal/g

Specific heat of water C = 1 cal/g C

Heat absorbed by ice to melt = mass( $m_{i}$ ) x latent heat(L)

Heat absorbed by water = mass( $m_{w}$ ) x specific heat(C) x change in temperature (dT')

$m_{i}$ = 0.050 kg = 50 g and $m_{w}$ = 0.50 kg = 500 g

Now, heat lost by water is as follows.

heat lost by hot water( at $80^{o}C$ ) = heat absorbed by the ice + heat absorbed by cold water

$m_{i} \times L + m_{i} \times C dT = m_{w} \times C dT'$

$50 \times 80 + 50 \times 1 \times (T_{f}) = 500 \times 1 \times (80 - T_{f})$

So, we will cancel out 50 from each term given above. Hence,

$80 + T_{f} = 800 - 10T_{f}$

$11 T_{f}$ = 720

$T_{f} = 65.45^{o}C$

Thus, we can conclude that final temperature of the water is $65.45^{o}C$ .

6 0

3 years ago

Read 2 more answers

Which would be most useful for overcoming the disadvantage of using ores??

aev [14]

Ores are specifically defined as a type of rock wherein it contains essential. These minerals would then be extracted from the rock and would be used in various industries. One conventional way of overcoming the disadvantages of using ones is through the use of recycled aluminium products.

6 0

3 years ago

The largest visible-light telescopes in the world use what device to collect as much light as possible before the light is broug

AlexFokin [52]

Answer:

Option C

Explanation:

Visible telescopes are the telescopes which are sensitive in the spectrum of the light in the visible range.

The visible light telescopes are of three types out of which the reflecting telescopes uses the mirror so as to collect light as much as it can.

Convex mirror is used in such telescopes to collect all the light that falls on it and then the mirror reflects the light back to the focus.

Thus the mirror acts a bucket of light for its collection and the helps to form the world's largest visible light telescope.

4 0

4 years ago