PHYSICS HIGH SCHOOL

Maurice directs a beam of light on a sheet of glass at an angle of 51°. What is the angle of refraction in the glass? The refractive index of glass is 1.46.A: 22 degrees
B: 29 degrees
C: 32 degrees
D: 36 degrees

Answers

Answer 1

Answer:

Answer:

Angle of refraction in the glass is 32 degrees

Explanation:

It is given that,

Maurice directs a beam of light on a sheet of glass at an angle, θ₁ = 51°

The refractive index of the glass is, n₂ = 1.46

We know that the refractive index of the air is, n₁ = 1

We have to find angle of refraction in glass i.e. θ₂

According to Snell's law :

$(n_1)/(n_2)=(sin\ \theta_2)/(sin\ \theta_1)$

Putting all the values we get :

$(1)/(1.46)=(sin\ \theta_2)/(sin51)$

$\theta_2=sin^(-1)((sin(51))/(1.46))$

$\theta_2=32\ ^0$

Hence, the correct option is (c) " 32 degrees ".

Answer 2

Answer: Maurice directs a beam of light on a sheet of glass at an angle of 51°. The refractive index of glass is 1.46. The angle of refraction in the glass is 29 degrees. The answer is letter B.

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B. Neither ultrasonic nor infrasonic vibrations can be heard by humans.
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D. Ultrasonic vibrations have a frequency lower than the range for normal hearing.

Answers

The accurate description of vibrations is that, neither ultrasonic nor infrasonic vibrations can be heard by humans. The Infrasonic vibration frequency is lower than 20Hz, whereas ultrasonic vibration frequency is greater than 20,000Hz. The normal range of frequency of hearing for humans is only 20Hz-20,000Hz.

the answer is B, Good luck!

If a material is ductile, it is most likely a ____________ . Question 24 options: A. Metalloid B. Noble Gas C. Non-Metal D. Metal E. Ion

Answers

Answer: Option (A) is the correct answer.

Explanation:

It is known that metals are malleable and ductile. Whereas non-metals are neither malleable nor ductile.

On the other hand, metalloids are the elements which contain properties similar to both metals and non-metals.

Therefore, if a material is ductile, it is most likely a metalloid because it is not necessary that ductility is a property shown by metals only.

Wherease like non-metals, noble gases are also neither malleable nor ductile.

A. Metalloid this is your answer plz click brainly-ist

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Answers

The Supreme Court does not watch the actions of the President.
I mean, the Justices may read the morning paper out of personal
curiosity, just like millions of other Americans do, but their job does
not require or consist of keeping an eye on the President. Or on
anybody else.

The Supreme Court is a court. That means that they come into the
office every day and wait for cases to be brought to them ... two people
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THEN, the Supreme Court listens to the opinions of both sides, and then
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The court can't say anything, even if they see a lot wrong stuff going on
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Once the Supreme Court makes their decision, that's IT. They're supreme,
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Answers

Problems with solar energy include the inability of current technology to capture the large amounts of the Sun's energy, the inability of current technology to store captured solar energy, and inconsistencies in the availability of the resource. Thus, the correct options are 1, 2, and 3.

What is the Solar energy?

Solar energy is the radiant light energy and the heat energy from the Sun which is harnessed using a wide range of technologies such as the solar power to generate electric energy, solar thermal energy, and the solar architecture.

Problems which are associated with the solar energy include the inability of current technology to capture the large amounts of the Sun's energy, the inability of current technology to store captured solar energy, and inconsistencies in the availability of the resource.

Therefore, the correct options are 1, 2, and 3.

Learn more about Solar energy here:

brainly.com/question/9704099

#SPJ1

First choice: the inability of current technology to capture
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Well, it's true that large amounts of it get away ... our 'efficiency' at capturing it is still rather low. But the amount of free energy we're able to capture is still huge and significant, so this isn't really a major problem.

Second choice: the inability of current technology to store
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No. We're pretty good at building batteries to store small amounts, or raising water to store large amounts. Storage could be better and cheaper than it is, but we can store huge amounts of captured solar energy right now, so this isn't a major problem either.

Third choice: inconsistencies in the availability of the resource

I think this is it. If we come to depend on solar energy, then we're
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Fourth choice: lack of demand for solar energy

If there is a lack of demand, it's purely a result of willful manipulation
of the market by those whose interests are hurt by solar energy.

Special relativity questions?1.) A rocket is moving at 1/4 the speed of light relative to Earth. At the center of this rocket, a light suddenly flashes. To an observer at rest on Earth
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b. the light will reach the front of the rocket at the same instant that it reaches the back of the rocket.
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Answers

The right answer for the question that is being asked and shown above is that:
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(3) b. less than Δt
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(5) c. 1.20c

Suppose the angular separation of two stars is smaller than the angular resolution of your eyes. How will the stars appear to your eyes?

Answers

Answer:

The two stars will look like a single point of light.

Explanation:

When the angular separation is smaller than angular resolution, the eye will not be able to resolve the stars thus they will appear like a point source of light.Angular resolution is one of the limit that our eyes can see. Angular resolution describes how much our eyes can distinguish two things apart which depends on the angle created by the incoming light rays from the two object. A smaller angle, very small angle for light rays to enter the eye thus little or no details for the eye to distinguish.

Final answer:

When two stars are closer together than the angular resolution of our eyes, they appear as a single point of light.

Explanation:

When the angular separation of two stars is smaller than the angular resolution of our eyes, they will appear as a single point of light to our eyes. This is because our eyes cannot distinguish the individual stars due to their close proximity. This is similar to how distant stars appear as pinpoints of light.