A gas in a cathode ray tube produces the line emission spectra shown containing four bright lines. The bright line that is most likely in the visible spectrum is line number 2 3 100 nm 200 nm 300 nm 400 nm Select one: Oa. 1 O b. 2 O c. 3 Od. 4 Identify the various atomic models in order of increasing sophistication Select one: O a. Bohr model, Rutherford Model, Wave Mechanical Model, Thomson Model O b. Bohr model, Rutherford Model, Thomson Model, Wave Mechanical Model O c. Thomson Model , Bohr model, Rutherford Model, Wave Mechanical Model O d. Thomson Model , Rutherford Model, Bohr model, Wave Mechanical ModelNOTE: The following applies to three questions. This is the third of three. The ions in a mass spectrometer are given kinetic energy by crossing a potential difference (V ). They then pass through a magnetic field (B ) perpendicular to their direction of travel. This results in a centripetal acceleration causing them to curve with a radius (r ). Hint: Equate centripetal force to magnetic force The slope of the graph of the straight line from the previous question is Select ones O a. qv / m O b. mv / q O c. qvm O d. qm / v Identify the situation below that would produce electromagnetic radiation. Select one: O a. An electron travelling at a constant speed O b. A neutron accelerating from rest O c. An electron travelling in a circle of radius two cm O d. A neutron travelling in a circle of radius two cmAlbert Michelson used a rotating mirror and a plane mirror, as shown in the diagram, to precisely determine the speed of light. This allowed a pulse of light to be reflected and observed at the detector only when the rotating mirror rotated at a proper frequency. Light source Rotating Plane mirror mirror Observer (detector) Determine Michelson's value for the speed of light using an 8-sided mirror rotating at $26.5 Hz placed 35.51 km from the plane mirror. Assume the reflection is observed after the rotating mirror rotates 1/8 of the way. Select one: O a. 2.991 x 108 m/s O b. 2.996 x 10 m/s O c. 3.000 x 108 m/s O d. 3.100 x 103 m/sA ray of light from air, having a refractive index of 1.00, is incident on the surface of a block of glass, having a refractive index of 1.50, at an angle of 37.6. Determine the angle of refraction. Select one: O a. 24.0 O b. 36.0 O c. 42 09 O d. 48.0 Light travelling from air enters a layer of a clear liquid. The speed of light through the liquid is 2.75 x 10 m/s. Calculate the liquid's index of refraction relative to air. Select one: O a. 0.917 O b. 1.00 O c. 1.09 O d. 2.75A grating is ruled with a line density of 5400 lines/cm. Monochromatic light striking the grating forms a second order image diffracted at 45.0. Determine the wavelength of the light used. Select one: O a. 131 nm O b. 655 nm O c. 6.55 x 105 m Od. 131 x 104m Monochromatic light of 530 nm is passed through two narrow slits imprinted onto a slide. The distance between the two slits is 0.75 mm and the screen is located 120 cm away from the slide. Determine the separation distance between bright lines in the interference pattern formed on the screen. Select one: Q a. 1.2 mm O b. 0.85 mm O c. 0.35 mm O d. 0.29 mm A visible spectrum is produced using white light and a glass prism. Assume the following indices of refraction: red (1.49), green (1.50), blue (1.51) and violet (1.52). The colour that demonstrates the greatest deviation from its original path is Select one: O a. red O b. green O c. blue O d. violetA polarizing filter Select one: a. blocks out all light except wavelengths that are oriented appropriately O b. causes light to behave like a particle reflecting between two mirrors O c. releases energy in the form of EMR in all directions O d. generates electromagnetic fields An 8.0 cm tall object is placed 20 cm away from a concave mirror that has a focal length of 5.0 cm. Determine the distance separating the mirror from the image. Select one: a. 0.15 cm O b. 0.25 cm O c. 4.0 cm O d. 6.7 cm A student conducts an investigation to determine the focal length of a convex lens. She holds the lens in front of her and looks through it at a distant object. She slowly moves the lens towards her eye. She know: she is holding it a the focal length when the image Select one: O a. is inverted O b. is upright O c. is real O d. disappears Sir Isaac Newton developed the reflecting telescope because of chromatic aberration with telescopes that used lenses. Chromatic aberration occurs when the light does not focus at a single point because Select one: O a. each wavelength has a different refractive index in the glass O b. light is a particle, not a wave, and therefore does not refract O c. not all light bends as it travels through the glass O d, of the shape of the lensA student conducts an investigation to determine the focal length of a convex lens. She holds the lens in front of her and looks through it at a distant object. She slowly moves the lens towards her eye. She knows she is holding it a the focal length when the image Select one: O a. is inverted O b. is upright O c. is real O d. disappears