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M-4_phyx_data-generator/phyx_task/phyx_0004/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "4",
+  "question": "A narrow beam of ultrasonic waves reflects off the liver tumor illustrated in figure. The speed of the wave is \\( 10.0\\% \\) less in the liver than in the surrounding medium. Determine the depth of the tumor.",
+  "choices": {
+    "A": "\\( 8.50 \\text{ cm} \\)",
+    "B": "\\( 4.90 \\text{ cm} \\)",
+    "C": "\\( 6.30 \\text{ cm} \\)",
+    "D": "\\( 10.80 \\text{ cm} \\)"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_4.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0005/ground_truth.mp4

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+version https://git-lfs.github.com/spec/v1
+oid sha256:18e80c9f65a59ec6d3c985954171ed5b75754b40b7bda42429f48784c3a1b1db
+size 25052

M-4_phyx_data-generator/phyx_task/phyx_0032/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "32",
+  "question": "The object in figure is midway between the lens and the mirror, which are separated by a distance \\( d = 25.0 \\text{ cm} \\). The magnitude of the mirror's radius of curvature is \\( 20.0 \\text{ cm} \\), and the lens has a focal length of \\( -16.7 \\text{ cm} \\). What is the overall magnification?",
+  "choices": {
+    "A": "4.78",
+    "B": "4.50",
+    "C": "5.52",
+    "D": "8.05"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_32.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0035/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "35",
+  "question": "Figure shows a thin converging lens for which the radii of curvature of its surfaces have magnitudes of \\( 9.00 \\text{ cm} \\) and \\( 11.0 \\text{ cm} \\). The lens is in front of a con- cave spherical mirror with the radius of curvature \\( R = 8.00 \\text{ cm} \\). Assume the focal points \\( F_1 \\) and \\( F_2 \\) of the lens are \\( 5.00 \\text{ cm} \\) from the center of the lens. Determine the index of refraction of the lens material. The lens and mirror are \\( 20.0 \\text{ cm} \\) apart, and an object is placed \\( 8.00 \\text{ cm} \\) to the left of the lens",
+  "choices": {
+    "A": "1.32",
+    "B": "1.44",
+    "C": "1.50",
+    "D": "1.99"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_35.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0044/ground_truth.mp4

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+oid sha256:758d49dacbecdc80193563dcc1c62c8b0cea938aebed47f3296eeb37a2d7c91f
+size 20611

M-4_phyx_data-generator/phyx_task/phyx_0059/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "59",
+  "question": "A 3.0-cm-high object is located 20 cm from a concave mirror. The mirror’s radius of curvature is 80 cm. Determine the height of the image.",
+  "choices": {
+    "A": "1.4cm",
+    "B": "5.6cm",
+    "C": "6.0cm",
+    "D": "2.4cm"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_59.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0061/ground_truth.mp4

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+version https://git-lfs.github.com/spec/v1
+oid sha256:71090605ec438986d8c509d9b0502b0b1c01bb10d04545ec8f8055896e40dab6
+size 22608

M-4_phyx_data-generator/phyx_task/phyx_0061/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "61",
+  "question": "A light ray leaves point A in Figure, reflects from the mirror, and reaches point B. How far below the top edge does the ray strike the mirror?",
+  "choices": {
+    "A": "1.4cm",
+    "B": "5.6cm",
+    "C": "4.0cm",
+    "D": "2.4cm"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_61.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0095/ground_truth.mp4

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+size 27942

M-4_phyx_data-generator/phyx_task/phyx_0095/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "95",
+  "question": "Fill a transparent drinking glass with water and place it on top of the line you have drawn, making sure the line extends outward from both sides of the glass. You look downward at an angle to see the image of the line through the water. The image of the line beneath the glass will appear shifted away from the line you have drawn. Use your values of $s$ and $d$ to estimate the index of refraction of the water.",
+  "choices": {
+    "A": "1.3",
+    "B": "2.1",
+    "C": "1.6",
+    "D": "1.9"
+  },
+  "answer": "A",
+  "original_image_filename": "phyx_95.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0106/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "106",
+  "question": "When viewed from outside, the spherical object appears to have radius $r' > r$.The object is a spherical dandelion seed head with diameter $45.0 \\, \text{mm}$ fixed at the center of a solidified resin sphere with radius $80.0 \\, \text{mm}$ and index of refraction $1.53$. What diameter will the seed head appear to have when viewed from outside?",
+  "choices": {
+    "A": "68.9mm",
+    "B": "67.6mm",
+    "C": "66.7mm",
+    "D": "69.2mm"
+  },
+  "answer": "A",
+  "original_image_filename": "phyx_106.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0125/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "125",
+  "question": "A screen containing two slits \\(0.100\\,\\mathrm{mm}\\) apart is \\(1.20\\,\\mathrm{m}\\) from the viewing screen. Light of wavelength \\(\\lambda=500\\,\\mathrm{nm}\\) falls on the slits from a distant source. Approximately how far apart will adjacent bright interference fringes be on the screen?",
+  "choices": {
+    "A": "6.40mm",
+    "B": "6.00mm",
+    "C": "6.20mm",
+    "D": "6.60mm"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_125.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0137/ground_truth.mp4

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+oid sha256:0804023153f3168ee792aa475670286906eecddc77ed2d30f6d9ac595987a617
+size 24971

M-4_phyx_data-generator/phyx_task/phyx_0141/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "141",
+  "question": "A woman stands in front of a vertical plane mirror.She is to be able to see her whole body. Assume that her eyes are \\(10\\,\\mathrm{cm}\\) below the top of her head. How high must the mirror's lower edge be above the floor?",
+  "choices": {
+    "A": "0.85m",
+    "B": "0.80m",
+    "C": "0.75m",
+    "D": "0.70m"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_141.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0146/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "146",
+  "question": "Light is incident on an equilateral glass prism at a angle to one face. Assume that \\(n = 1.54\\). Calculate the angle at which light emerges from the opposite face.",
+  "choices": {
+    "A": "$66.2^{\\circ}\\",
+    "B": "$46.2^{\\circ}\\",
+    "C": "$56.2^{\\circ}\\",
+    "D": "$76.2^{\\circ}\\"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_146.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0148/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "148",
+  "question": "A converging lens with a focal length of \\(12.0\\,\\mathrm{cm}\\) is in the right of the diverging lens. The two-lens system forms a real inverted image in the right of the converging lens. What is the focal length of the diverging lens?",
+  "choices": {
+    "A": "-23.0cm",
+    "B": "-21.0cm",
+    "C": "-19.0cm",
+    "D": "-17.0cm"
+  },
+  "answer": "C",
+  "original_image_filename": "phyx_148.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0166/ground_truth.mp4

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+oid sha256:7590f0cc6cee41c087e5fbf074727da6ef25176d5a5e2e6bc4784f9a9fadb275
+size 25166

M-4_phyx_data-generator/phyx_task/phyx_0170/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "170",
+  "question": "Two loudspeakers, \\( A \\) and \\( B \\) (\\textbf{figure}), are driven by the same amplifier and emit sinusoidal waves in phase. Consider point \\( Q \\) along the extension of the line connecting the speakers, \\( 1.00\\,\\text{m} \\) to the right of speaker \\( B \\). Both speakers emit sound waves that travel directly from the speaker to point \\( Q \\). What is the lowest frequency for which \\textit{destructive} interference occurs at point \\( Q \\)?",
+  "choices": {
+    "A": "86Hz",
+    "B": "80Hz",
+    "C": "896Hz",
+    "D": "85Hz"
+  },
+  "answer": "A",
+  "original_image_filename": "phyx_170.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0177/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "177",
+  "question": "Figure shows a standing wave on a $2.0 \\, \\text{m}$-long string that has been fixed at both ends and tightened until the wave speed is $40 \\, \\text{m/s}$. What is the frequency?",
+  "choices": {
+    "A": "25 Hz",
+    "B": "100 Hz",
+    "C": "20 Hz",
+    "D": "50 Hz"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_177.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0179/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "179",
+  "question": "Figure shows a standing sound wave in a tube. The tube is filled with an unknown gas. What is the speed of sound in this gas?",
+  "choices": {
+    "A": "600 m/s",
+    "B": "200 m/s",
+    "C": "160 m/s",
+    "D": "400 m/s"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_179.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0183/original/question.json

@@ -0,0 +1,14 @@
+{
+  "dataset": "PhyX",
+  "source_id": "183",
+  "question": "In 1866, the German scientist Adolph Kundt developed a technique for accurately measuring the speed of sound in various gases. A long glass tube, known today as a Kundt's tube, has a vibrating piston at one end and is closed at the other. Very finely ground particles of cork are sprinkled in the bottom of the tube before the piston is inserted. As the vibrating piston is slowly moved forward, there are a few positions that cause the cork particles to collect in small, regularly spaced piles along the bottom. Figure shows an experiment in which the tube is filled with pure oxygen and the piston is driven at $400 \\, \\text{Hz}$. What is the speed of sound in oxygen?",
+  "choices": {
+    "A": "400 m/s",
+    "B": "164 m/s",
+    "C": "246 m/s",
+    "D": "328 m/s"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_183.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0184/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "184",
+  "question": "The tube of figure has a insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. As the insert is slowly pulled out, the sound from the tuning fork creates standing waves in the tube when the total length $L$ is $42.5 \\, \\text{cm}$, $56.7 \\, \\text{cm}$, and $70.9 \\, \\text{cm}$.Assume $v_{\\text{sound}} = 343 \\, \\text{m/s}$. What is the frequency of the tuning fork?",
+  "choices": {
+    "A": "2.415 kHz",
+    "B": "0.605 kHz",
+    "C": "0.807 kHz",
+    "D": "12.1 kHz"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_184.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0192/ground_truth.mp4

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+oid sha256:7dc496b4fc4a83531495f05ac7bf6af68cd37246f39d654e8a3b2ea1c384240d
+size 22446

M-4_phyx_data-generator/phyx_task/phyx_0200/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "200",
+  "question": "A spider of mass \\(0.30\\,\\mathrm{g}\\) waits in its web of negligible mass. A slight movement causes the web to vibrate with a frequency of about \\(15\\,\\mathrm{Hz}\\).An insect of mass \\(0.10\\,\\mathrm{g}\\) were trapped in addition to the spider. At what frequency would you expect the web to vibrate?",
+  "choices": {
+    "A": "19Hz",
+    "B": "16Hz",
+    "C": "10Hz",
+    "D": "13Hz"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_200.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0207/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "207",
+  "question": "Carbon dioxide is a linear molecule. The carbon--oxygen bonds in this molecule act very much like springs.Hence each oxygen atom acts like a simple harmonic oscillator with a mass equal to the mass of an oxygen atom. It is observed that this oscillation occurs at a frequency \\( f = 2.83 \\times 10^{13}\\,\\mathrm{Hz} \\). What is the spring constant of the C--O bond?",
+  "choices": {
+    "A": "760N/m",
+    "B": "800N/m",
+    "C": "880N/m",
+    "D": "840N/m"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_207.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0209/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "209",
+  "question": "For any type of wave that reaches a boundary beyond which its speed is increased, there is a maximum incident angle if there is to be a transmitted refracted wave. This maximum incident angle \\( \\theta_{i\\mathrm{M}} \\) corresponds to an angle of refraction equal to \\( 90^{\\circ} \\). If \\( \\theta_i > \\theta_{i\\mathrm{M}} \\), all the wave is reflected at the boundary and none is refracted, because refraction would correspond to \\( \\sin \\theta_r > 1 \\) (where \\( \\theta_r \\) is the angle of refraction), which is impossible. This phenomenon is referred to as total internal reflection.His voice is \\( 1.8\\,\\mathrm{m} \\ above the ground.The speed of sound is about \\( 343\\,\\mathrm{m/s} \\) in air and \\( 1440\\,\\mathrm{m/s} \\) in water. How far from the bank should a trout fisherman stand (figure) so trout won't be frightened by his voice?",
+  "choices": {
+    "A": "0.56m",
+    "B": "0.52m",
+    "C": "0.48m",
+    "D": "0.44m"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_209.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0236/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "236",
+  "question": "An object of mass \\( m_1 = 9.00\\,\\mathrm{kg} \\) is in equilibrium when connected to a light spring of constant \\( k = 100\\,\\mathrm{N/m} \\) that is fastened to a wall. A second object, \\( m_2 = 7.00\\,\\mathrm{kg} \\), is slowly pushed up against \\( m_1 \\), compressing the spring by the amount \\( A = 0.200\\,\\mathrm{m} \\). How far apart are the objects when the spring is fully stretched for the first time?",
+  "choices": {
+    "A": "8.86cm",
+    "B": "8.76cm",
+    "C": "8.66cm",
+    "D": "8.56cm"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_236.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0238/ground_truth.mp4

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+size 26802

M-4_phyx_data-generator/phyx_task/phyx_0238/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "238",
+  "question": "A light, cubical container is initially filled with a liquid of mass density \\( \\rho \\).The cube is initially supported by a light string to form a simple pendulum, measured from the center of mass of the filled container, where \\( L_i \\gg a \\). The liquid is allowed to flow from the bottom of the container at a constant rate \\( dM/dt \\).The liquid completely runs out of the container. What is the period of the pendulum?",
+  "choices": {
+    "A": "$2\\pi \\sqrt{\\frac{L_i}{g^2}}$",
+    "B": "$\\pi \\sqrt{\\frac{L_i}{g}}$",
+    "C": "$2\\pi \\sqrt{\\frac{g}{L_i}}$",
+    "D": "$2\\pi \\sqrt{\\frac{L_i}{g}}$"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_238.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0239/original/question.json

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+{
+  "dataset": "PhyX",
+  "source_id": "239",
+  "question": "Assume the waves move in straight lines through uniform material. The S waves travel through the Earth more slowly than the P waves (at about \\( 5\\,\\mathrm{km/s} \\) versus \\( 8\\,\\mathrm{km/s} \\)). How many detection stations are necessary to locate the focus unambiguously?",
+  "choices": {
+    "A": "5",
+    "B": "4",
+    "C": "2",
+    "D": "3"
+  },
+  "answer": "D",
+  "original_image_filename": "phyx_239.png",
+  "has_embedded_choices": false
+}

M-4_phyx_data-generator/phyx_task/phyx_0253/ground_truth.mp4

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+size 21734