If Michelson had used a six-sided mirror to measure the speed of light and obtained an image when the mirror was rotating 4.88 x 10^4 RPM, what would be the calculated speed of light if the fixed mirror was placed 30 km from the rotating mirror?
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- In a michelson type experiment, the rotating 8 sided mirror spins at 30 000 revolutions per minute. The reflecting plane mirror is 32.4 km away. The speed of light determined using this data is what?Consider, Speed of light 3 x 108 m/s.The intensity of the light emitted by our sun peaks at about 550 nm. The frequency of this light is equal to 5.45x10^____. (Give the exponent.)
- The index of refraction is defined to be n = A/B where: A = speed of light in material #1 %3D B = speed of light in material #2 OA = speed of light in vacuum B = speed of light in a material A = speed of light in a material B = speed of light in vacuum A = Square root of [(speed of light in vacuum)2 + (speed of light in a material)2] B = speed of light in a materialAn experimenter stands along a line between two firecrackers that are 1500 m apart. The two firecrackers explode simultaneously. She sees the flash of the light from the firecracker to her left 1.0 μs before she sees the flash from the firecracker to her right. Where is the experimenter standing?Review Conceptual Example 3 for information pertinent to this problem. When we look at a particular star, we are seeing it as it was 380 years ago. How far away from us (in meters) is the star? Take a year to be 365.25 days.
- The sun is 1.519 x 10^8 km from earth. How long in minutes does it take for light from the sun to reach earth? c=3x10^8 m/sThe speed of light in free space has been measured to be 2.99792458 x 108-m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.The speed of light in free space has been measured to be 2.99792458 x 108-m/s.Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.
- just after launch, the space shuttle flies straight up, and it takes 8.0 s to reach a speed of 160 km/hr. during this phase of the light, what is the apparent weight of the 72 kg astronaut onboard?Two plane mirrors are facing each other. They are parallel, 2 cm apart, and 24 cm in length, as the drawing indicates. A laser beam is directed at the top mirror from the left edge of the bottom mirror. What is the smallest angle of incidence with respect to the top mirror, such that the laser beam hits the mirrors in each way? Laser (a) hits only one of the mirrors (b) hits each mirror only once 1,316 étv (A 20 MacBook Air 80 F7 F5 F6 esc F2 F3 F4 F1 & @ #3 2$ 1 3 4 トA ray is incident upon a reflective surface at an angle of θi=46.8∘ relative to the direction normal to the surface (see image below to help visualize the situation). What is the angle of the reflected ray (θr) relative to the normal direction (in degrees)?