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3 years ago

Why the center of Newton rings is dark?

2 answers:

3 0

The point of contact the path difference is zero but one of the interfering ray is reflected so the effective path difference becomes λ/2 thus the condition of minimum intensity is created in the center.

grandymaker [24]3 years ago

3 0

Answer:

the point of contact Thè path different is zero but

<h3>one of inter ferying ray is reflected so the effective path difference become<u> </u><u>/</u> 2 and in this condition minimum intensity is created at center so the center of Newton ring is dark</h3>

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Answer:

Explanation:

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3 years ago

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3 years ago

Read 2 more answers

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Delvig [45]

Answer:

(a) The magnetic energy density in the field is 6.366 J/m³

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Explanation:

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inner diameter of solenoid, d = 6.2 cm

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length of solenoid, L = 26 cm = 0.26 m

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$u _B = \frac{B^2}{2\mu_o} \\\\u _B = \frac{(4)^2}{2(4\pi*10^{-7})}\\\\u_B = 6.366*10^6 \ J/m^3$

(b) The energy stored in the magnetic field within the solenoid

$U_B = u_B V\\\\U_B = u_B AL$

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3 years ago

A 100 V battery is connected across a

Sergio039 [100]

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=0.005 A

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= 100 / 0.005

= 20000 ohms

Current = voltage / resistance

= 25 / 20000

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3 years ago

Acceleration is defined as the change in velocity divided by

denpristay [2]

Answer:

Time elapsed

Explanation:

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$a=\frac{v-u}{t}$

where

v is the final velocity

u is the initial velocity

t is the time elapsed

Acceleration is measured in meters per second squared (m/s^2). It must be noticed that acceleration is a vector, so it also has a direction. In particular:

- when acceleration is negative, it means that the object is slowing down, so acceleration is in opposite direction to the velocity

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3 years ago

Why the center of Newton rings is dark?​

Why the center of Newton rings is dark?