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4 years ago

13

Which best explains why the diagram shows refraction but not reflection?

2 answers:

alexandr402 [8]4 years ago

5 0

There's no way to tell without seeing the diagram.

erastovalidia [21]4 years ago

4 0

The answer would be that it shows that the ray is changing direction. Refraction will occur when light changes direction due to the object it is passing through. For example, as a lifeguard, when looking for submerged victims, they may appear distorted to the naked eye through the water because the light is "refracted" because of the light passing through the water's surface.

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A charged wire of negligible thickness has length 2L units and has a linear charge density λ. Consider the electric field E-vect

Stels [109]

Answer:

$E=2K\lambda d\dfrac{L }{d^2\sqrt{L^2+d^2}}$

Explanation:

Given that

Length= 2L

Linear charge density=λ

Distance= d

K=1/(4πε)

The electric field at point P

$E=2K\int_{0}^{L}\dfrac{\lambda }{r^2}dx\ sin\theta$

$sin\theta =\dfrac{d}{\sqrt{d^2+x^2}}$

$r^2=d^2+x^2$

So

$E=2K\lambda d\int_{0}^{L}\dfrac{dx }{(x^2+d^2)^{\frac{3}{2}}}$

Now by integrating above equation

$E=2K\lambda d\dfrac{L }{d^2\sqrt{L^2+d^2}}$

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3 years ago

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densk [106]

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4 years ago

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Fittoniya [83]

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2 years ago

Compare 2,500 centimeters to 25 decimeters. How do each of these values compare to a meter, and which represents a longer length

Rom4ik [11]

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3 years ago

A 8.0-cm long solenoid has 2000 turns of wire and carries a current of 5.0-A. Calculate the strength of the magnetic field at th

CaHeK987 [17]

Answer:

B = 0.157 T

Explanation:

Given that,

Length of the solenoid, l = 8 cm = 0.08 m

Number of turns in the wire, N = 2000

Current, I = 5 A

We need to find the strength of the magnetic field at the center of the solenoid. It is given by the formula as follows :

$N=\mu_o nI$ , N is number of turns per unit length of solenoid.

So,

$B=4\pi \times 10^{-7}\times \dfrac{2000}{0.08}\times 5\\\\=0.157\ T$

So, the magnetic field at the center of the solenoid is 0.157 T.

6 0

3 years ago