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2 years ago

SHOW REFRACTION THROUGH A GLASS SLATE WITH NEAT DIAGRAM

Physics

2 answers:

Bogdan [553]2 years ago

4 0

Refer to the attachment

bixtya [17]2 years ago

3 0

Answer:

When the light ray travels from rarer to denser medium it bends towards the normal while that of rarer to denser goes away from normal.

Explanation:

A ray of light EF in air is incident on the glass surface PQ at point O. As the ray EO enters from air (rarer medium) to glass (denser medium), the ray bends towards normal and follows the path OO' inside the glass slab. At point O', refraction enters from glass (denser medium) to air (rarer medium) the ray bends away from normal and follows the path O'H outside the glass slab. Here the ray EF is called incident ray, OO' called refracted ray and O'H called emergent ray.

As per the laws of refraction, the emergent ray OlH will be parallel to the incident ray EF. The perpendicular distance O'I=x between the original path of incident ray and the emergent ray is called the lateral displacement.

Note: When the light ray has incidental in a medium and after this the light ray reflected in different media and then comes out in the same medium as it was incidence then the incident ray and emergent ray are parallel to each other.

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A plastic bottle partially filled with water floats on water, even though the density of the plastic (1.2 g/cc) is more than tha

Semmy [17]

Answer:

True the plastic will float because of the principle of flotation or buoyancy

Explanation:

Buoyancy explains it all!!

Buoyancy is the upward force/upthrust experienced by a body immersed totally or partially in a liquid.

According to the principle of flotation:

"when a body is totally or partially immersed in liquid it experiences an upthrust which is equal to the volume of fluid displaced"

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2 years ago

What is superstring theory?

Stels [109]

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2 years ago

Learning Goal:

enot [183]

Answer:

A. $U_0 = \dfrac{\epsilon_0 A V^2}{2d}$

B. $U_1 = \dfrac{\epsilon_0 A V^2}{6d}$

C. $U_2 = \dfrac{K\epsilon_0 A V^2}{2d}$

Explanation:

The capacitance of a capacitor is its ability to store charges. For parallel-plate capacitors, this ability depends the material between the plates, the common plate area and the plate separation. The relationship is

$C=\dfrac{\epsilon A}{d}$

$C$ is the capacitance, $A$ is the common plate area, $d$ is the plate separation and $\epsilon$ is the permittivity of the material between the plates.

For air or free space, $\epsilon$ is $\epsilon_0$ called the permittivity of free space. In general, $\epsilon=\epsilon_r \epsilon_0$ where $\epsilon_r$ is the relative permittivity or dielectric constant of the material between the plates. It is a factor that determines the strength of the material compared to air. In fact, for air or vacuum, $\epsilon_r=1$ .

The energy stored in a capacitor is the average of the product of its charge and voltage.

$U = \dfrac{QV}{2}$

Its charge, $Q$ , is related to its capacitance by $Q=CV$ (this is the electrical definition of capacitance, a ratio of the charge to its voltage; the previous formula is the geometric definition). Substituting this in the formula for $U$ ,