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n200080 [17]
4 years ago
14

For total internal reflection to occur, all of the following must happen but __________. light must travel slower in the first m

edium light must refract light must strike the boundary at an angle greater than the critical angle the boundary must be reflective
Physics
2 answers:
bija089 [108]4 years ago
6 0

Answer:

Explanation:

When a ray of light passes through denser medium to rarer medium and then after refraction it comes back into the denser medium, the phenomenon is called total internal refraction.

There are two necessary conditions for the total internal refraction.

(1) The refraction takes place g=from denser medium to rarer medium.

(2) The angle of incidence in the denser medium should be more than the critical angle for that pair of media.

lukranit [14]4 years ago
5 0

Answer:

For total internal reflection to occur, <u>boundary does not need to be reflective</u>

Explanation:

There are two conditions for total internal reflection to occur:

1- The light must travel from denser (slower) medium to rarer medium.

2- The light must strike the boundary at an angle, which is greater than the critical angle.

The boundary does not need to be reflective in order for the total internal reflection to occur. In fact, total internal reflection is a phenomenon related to the refraction of light.

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A bicycle has wheels of 0.70 m diameter. The bicyclist accelerates from rest with constant acceleration to 22 km/h in 10.8 s. Wh
Anna11 [10]

Answer:

\alpha=0.16\frac{rad}{s^2}

Explanation:

Angular acceleration is defined as the variation of angular speed with respect to time:

\alpha=\frac{\omega}{t}

The relation between the angular speed and the linear speed is given by:

\omega=\frac{v}{r}

Replacing (2) in (1):

\alpha=\frac{v}{rt}

We need to convert \frac{km}{h} to \frac{m}{s}:

22\frac{km}{h}*\frac{1h}{3600s}*\frac{1000m}{1km}=6.11\frac{m}{s}

Recall that:

r=\frac{d}{2}=\frac{0.7m}{2}=3.5m

Replacing:

\alpha=\frac{6.11\frac{m}{s}}{(3,5m)(10.8s)}\\\alpha=0.16\frac{rad}{s^2}

3 0
4 years ago
The prevailing winds that form in Hadley cells are _____.
dmitriy555 [2]
Answer = C

It blows towards the poles from the sub-tropical high pressure areas
8 0
3 years ago
Read 2 more answers
Write a script that depicts an employer meeting expectation and failing meeting expectations
Aleks04 [339]

Answer: On Monday, XX/XX, the XXXX you presented in our weekly review were not accurate and I’m worried that this reflected poorly on our team’s credibility. This could negatively impact senior leadership’s confidence in our team’s effectiveness at a time when headcount is already being scrutinized and potentially eliminated. Next time you present XXXX, my expectation is that everything will have been double or triple-checked in advance of the meeting so that all figures are reported accurately.

4 0
2 years ago
What forces cause the magnetic repulsion and attraction?
frutty [35]

Answer:

The cause of a magnetic force are small electrical currents or moving charges: Tiny circular currents at the atomic level are responsible in a permanent magnet for it to exert a magnetic force.

Explanation:

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3 years ago
The electron in a ground-state h atom absorbs a photon of wavelength 97. 25 nm. to what energy level does the electron move?
Alecsey [184]

The electron in a ground-state H atom absorbs a photon of wavelength 97. 25 nm.  Energy level till where the electron move is 4

Rydberg's equation is formula which signifies relation of wavelength of incident photon and the energy level.

Rydberg's equation is used to find out the relation between the wavelength and the Energy Levels:

1/λ = RZ² (1/n₁² - 1/n₂²)

where, λ is wavelength = 97.25 nm

           R is the Rydberg constant = 1.0967 × 10⁷ m

           n₁ is the initial energy level i.e. the Ground state, n₁  = 1

           n₂ is the higher energy level

On substitution of the above value:

1/97.25 × 10⁻⁹ = 1.0967 × 10⁷ ( 1 -  1/n₂²)

On solving,

⇒ n₂ = 4

Hence, the higher energy level is 4

Learn more about Energy Level here, brainly.com/question/17396431

#SPJ4

5 0
2 years ago
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