A beam of light has a wavelength of 650 nm in vacuum. (a) what is the speed of this light in a liquid whose index of refrac- tion at this wavelength is 1.47? (b) what is the wavelength of these waves in the liquid?
1. A beam of light has a wavelength of 650 nm in vacuum. (a) what is the speed of this light in a liquid whose index of refrac- tion at this wavelength is 1.47? (b) what is the wavelength of these waves in the liquid?
Jawaban:
A beam of light has a wavelength of 650 nm in vacuum. (a) what is the speed of this light in a liquid whose index of refrac- tion at this wavelength is 1.47? (b) what is the wavelength of these waves in the liquid?
2. The wavelength of laser beam is 476 nm (nanometers). Expressed in unit of meters this wavelength is ...
Konversi satuan
Kelas X
476 nm = ... m
1 nm = 10⁻⁹ m
476 nm = 476 × 10⁻⁹ m
= 4,76 × 10⁻⁷ m ⬅ Jawab476 kali 10^-9 meter....
ini soal
3. c) a sound wave of frequency 7.5 khz travels through a steel beam at a speed of 6100 m/s. (i) calculate the wavelength of this sound wave in the steel beam.
Jawaban:
0.8133 m
Penjelasan:
Known :
f : 7.5 kHz
v : 6100 m/s
Asked : wavelength (λ) = ?
Answer
λ = v/f = 6100 / (7500 Hz) = 61/75 = 0.8133 m
4. Characteristics of light
CHARACTERISTICS OF LIGHT=
- Light can spread anywhere.
- Light is so bright.
maaf kalo salah, soalnya nggak terlalu bagus di Inggris, sama nggak terlalu tahu ciri ciri cahaya, maaf ya.
5. Translate each of the following sentences into an augmented logical formula, indicating which entities play the roles of Agent, Affected, and Instrument. A The worker moved the beam with a crane b The crane moved the beam c The beam moved
Jawaban:
ini bhs indonesia nya:
Terjemahkan setiap kalimat berikut ke dalam rumus logika tambahan, yang menunjukkan entitas mana yang memainkan peran Agen, Terpengaruh, dan Instrumen. A Pekerja memindahkan balok dengan crane b Derek memindahkan balok c Balok dipindahkan
6. conclusion of parallel structure
What exactly is parallel structure? It’s simply the practice of using the same structures or forms multiple times: making sure the parts are parallel to each other. Parallel structure can be applied to a single sentence, a paragraph, or even multiple paragraphs. Compare the two following sentences:
Yara loves running, to swim, and biking.
Yara loves running, swimming, and biking.
Was the second sentence easier to comprehend than the first? The second sentence uses parallelism—all three verbs are gerunds, whereas in the first sentence two are gerunds and one is an infinitive. While the first sentence is technically correct, it’s easy to trip up over the mismatching items. The application of parallelism improves writing style and readability, and it makes sentences easier to process.
Compare the following examples:
Lacking parallelism: “She likes cooking, jogging, and to read.”
Parallel: “She likes cooking, jogging, and reading.”
Parallel: “She likes to cook, jog, and read.”
Lacking parallelism: “He likes to swim and running.”
Parallel: “He likes to swim and to run.”
Parallel: “He likes swimming and running.”
Once again, the examples above combine gerunds and infinitives. To make them parallel, the sentences should be rewritten with just gerunds or just infinitives. Note that the first nonparallel example, while inelegantly worded, is grammatically correct: “cooking,” “jogging,” and “to read” are all grammatically valid conclusions to “She likes.”
Lacking parallelism: “The dog ran across the yard, jumped over the fence, and down the alley sprinted.”
Grammatical but not employing parallelism: “The dog ran across the yard and jumped over the fence, and down the alley he sprinted.”
Parallel: “The dog ran across the yard, jumped over the fence, and sprinted down the alley.”
The nonparallel example above is not grammatically correct: “down the alley sprinted” is not a grammatically valid conclusion to “The dog.” The second example, which does not attempt to employ parallelism in its conclusion, is grammatically valid; “down the alley he sprinted” is an entirely separate clause.
Parallelism can also apply to names. If you’re writing a research paper that includes references to several different authors, you should be consistent in your references. For example, if you talk about Jane Goodall and Henry Harlow, you should say “Goodall and Harlow,” not “Jane and Harlow” or “Goodall and Henry.” This is something that would carry on through your entire paper: you should use the same mode of address for every person you mention.
You can also apply parallelism across a passage:
Manuel painted eight paintings in the last week. Jennifer sculpted five statues in the last month. Zama wrote fifteen songs in the last two months.
Each of the sentences in the preceding paragraph has the same structure: Name + -ed verb + number of things + in the past time period. When using parallelism across multiple sentences, be sure that you’re using it well. If you aren’t careful, you can stray into being repetitive. Unfortunately, really the only way to test this is by re-reading the passage and seeing if it “feels right.” While this test doesn’t have any rules to it, it can often help.
maaf kalo salah
jadikan yamg terbaik
terimakasih
7. The bouncing of light off a surface is called theof light.a. reflectionb. beamc. rayd. reflect
Jawaban:B
Penjelasan:karena jawaban nya B
8. a bundle of light rays makes up a.....of light
Jawaban:
bunch
Penjelasan:
A bundle of light rays makes up a beam of lightTerjemahan:
Beberapa sinar cahaya membentuk sebuah berkas cahaya.
9. Fungtion of light energy
as the lighting of darkness
10. yang salah dalam the fact that white light is light composed of various wavelengths may be demonstrated by dispersing a beam of such light through a prism
white light is light composed of .... itu kurang tepat menurutku.
karena composed itu bisa past tense atau bisa passive voice ( kalo mengacu dr is .... composed).
kalimat ini agak membingungkan saya karena dalam satu kalimat tidak boleh ada 2 verb. maka composed tsb adl passive voice krn ada is. jadi is composed. tapi kayaknya maksud si penulis is tsb artinya adalah.
11. When plucked, a 0.62m guitar string produces a sound wave with a fundamental frequency of 196Hz. The speed of sound in air is 343m/s. Determine the ratio of the wavelength of the sound wave in air to the wavelength of the waves that travel on the string.
Wavelength of the sound in air: v = f*lambda. You have the speed and the frequency, plug them in.
Wavelength of the sound on the string: The fundamental frequency on a string fixed at both ends (like a guitar string) is such that the length of the string is lambda/2. So lambda = 2*L.
12. A microwave oven uses microwaves with a wavelength of 0.12m. What is the frequency of these microwaves?
c = wavelength . f
3 . 10^8 = 0,12 . f
f = 2,5 . 10^9 Hz
13. a stream of light with wavelenght of 600 nm is perpendicular incident on a grid with 300 scratches in every mm the maximum order observed is
The maximum order observed is 5
Further explanationA diffraction grating is used to scatter polychromatic light into the color of its components.
The gap between scratches has a distance called the lattice constant (r)
The path difference (C) formed between two gaps is d sin θ
Can be formulated
[tex]\rm \boxed{\bold{C=d~sin~ \theta}}[/tex]
[tex]\rm r=\dfrac{1}{N}~(N=lines/cm~of~the~grid)[/tex]
A stream of light with wavelength of 600 nm is a perpendicular incident on a grid with 300 scratches in every mm
So it is known:
λ = 600 nm = 6 x 10⁻⁷ m
N = 300 lines / mm
then the lattice constant
[tex]\rm r=\dfrac{1}{N}\\\\r=\dfrac{1}{300}\\\\r=3.10^{-6}~m[/tex]
Maximum Order:
[tex]\rm r~sin~\theta=n.\lambda\\\\sin~\theta=\dfrac{n.\lambda}r}\\\sin~\theta=n.\dfrac{6.10^{-7}}{3.10^{-6}}\\\\sin~\theta=n.0.2[/tex]
The maximum value of the sine function = 1, so that the maximum order
[tex]\rm 1=n\times 0.2\\\\n=\dfrac{1}{0.2}=\boxed{\bold{5}}[/tex]
Learn moreDiffraction grating
https://brainly.co.id/tugas/22653669
https://brainly.co.id/tugas/3675554
Detailed answer
Grade :11th class
Subjects: Physics
Chapter: Light Waves
Code: 11.6.10
Keywords: diffraction grating, lattice constant
14. The frequency of radio waves is inversely proportional to the wavelength. Given that the wavelength is 1.5 x 103 m when the frequency is 2.0 x 105 hertz (Hz), find The frequency of the radio waves with a wavelength of 480 m.( 10 marks )
Jawaban:
terjemah:
Frekuensi gelombang radio berbanding terbalik dengan panjang gelombang. Diketahui panjang gelombang 1,5 x 103 m pada frekuensi 2,0 x 105 hertz (Hz), tentukan frekuensi gelombang radio dengan panjang gelombang 480 m.( 10 tanda )
15. 8.A brightly lit area has a higher ... than a dimly litareab. light intensitya light sensorc. bcam of lightd light ray9. A light meter or a ... with a data logger can beused to measure light intensity.a. light sensorb. light intensityc. beam of lightd light ray10. Light intensity is measured in the ....a. light sensorb. unit luxc. beam of lightd. light raytolong pliis:)(:
Jawaban:
8. b. light intensity
9. A. light sensor
10. B. unit Lux
16. a bundle of light rays makes up a.....of lighta.light rayb.flashlightc.sunlightd.beam
Penjelasan:
a bundle of of light raya make up a ... of light
a. Light ray.
b. Flashlight.
c. Sunlight.
d. Beam.
TranslateSeikat cahaya membentuk ... dari lampu
a. Sinar cahaya.
b. Senter.
c. Sinar matahari
d. Balok
jadi jawabannya adalah d. Balok.
Note :
Maaf kalau salah, semoga membantu, Amiin.
17. SOAL FISIKA KELAS XI: GELOMBANG CAHAYAA paralel beam of white light is incident normally on a diffraction grating. It is noted that the second order and the third order spectra overlap each other. Given that third order spectra has a wave legth of 400 nm. What is the wave legth of the second order spectra?
Cara dan jawaban ada di foto
18. A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.10 meters what is the speed of the wave?
Known:
f = 320 hz
λ = 0,1 m
Question:
v = ... m/s
Answer:
v = f x λ
v = 320 hz x 0,1 m
v = 32 m/s
The speed of the wave is 32 m/s
19. Which statement is NOT TRUE to describe the size of a beam? (A) The beam is 3 meters long. (B) The beam is 3 meters length. (C) The beam has a length of 3 m. (D) The length of the beam is 3 m. (E) The beam is 3 meters in length.
Jawaban:
(B) The beam is 3 meters length.
Penjelasan:
Cara mengucapkan panjang 3 meter benar semua kecuali B.
Semoga bermanfaat
Jawaban:
a
Penjelasan:
size of a beam is not long, but length
20. When the frequency of a wave is increased, what happens to :A.) the wavelength if the speed is constant?B.) The speed of the wave if the Wavelength is constant? Mohon bantuannya, hari ini duenya
Penjelasan:
A. Wavelength = speed/frequency, so if frequency increased wavelength will decereased
B. Speed = wavelength. Frequency, so if frequency increased speed will increased
0 Komentar