Physics question and answers for October 22, 2023
- Q Young's experiment was instrumental in supporting Huygens' wave theory of light. Explain which two conditions Young satisfied in his experiment that were not adequately done before. Describe how he achieved...
- Q You observe a rocket moving away from you. Compared to the passage of time measured by the watch on your wrist, is the passage of time on the rocket's clock...
- Q The diagram above represent the interference pattern produced by Young's Experiment. The row marked A would be the central bright area. What would we call therow labeled C?2nd order bright...
- Q What is the wavelength, in meters, of a wave with a velocity of 132.9 m/s and a frequency of 134.9 Hz?Round to the nearest tenth. Don't include units.
- Q A film of soapy water (n = 1.33) on top of a sheet of crown glass (n = 1.52) has a thickness of 196 nm. What wavelength is most strongly...
- Q Working in lab class you shine a green laser (5.40 x 10 nm) onto a double slit with a separation of 0.320 mm. What is the distance between the first...
- Q Young's double slit experiment is one of the quintessential experiments in physics. The availability of low cost lasers in recent years allows us to perform the double slit experiment rather...
- Q While direct sunlight is unpolarized, light coming from a clear blue sky is linearly polarized to some extent. Assume all the light from the blue sky is linearly polarized in...
- Q You've entered the Great Space Race. Your engines are hearty enough to keep you in second place. While racing, the person in front of you begins to have engine troubles...
- Q In a Newton's Ring experiment, the diameter of the 20th dark ring was found to be 5.82 mm and that the 10th ring 3.36 mm . If the radius of...
- Q Find a lighted bare light bulb (in your room or a streetlight, etc). Move around and notice that you can see the lighted bulb from many directions. 1) Now cut...
- Q In a double-slit experiment, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the...
- Q A compound microscope has a magnifying power 48. The focal length of its eye-piece is 5cm. If final image is formed at least distance of distinct vision (25cm) then magnification...
- Q You shine an orange laser (632 nm) on a double slit in an experiment you perform in your physics lab. Measuring with a protractor you see that the interference pattern...
- Q From what distance can these lightbulbs be marginally resolved by a small telescope with a 6.0-cm -diameter objective lens? Assume that the lens is limited only by diffraction and ?...
- Q Determine the refractive index of a piece of glass (n1) if the angle of incidence (angle 1) = 30 degrees. The angle of refraction (angle 2) = 37 degrees and...
- Q What is occurring when a light wave goes through a pane of glass in a window?A. absorptionB. transmissionC. constructive interferenceD. destructive interference
- Q The distance between identical parts of a wave (crest to crest) is called its Select one: a. frequency b. the amplitude c. wavelength d. period
- Q A demonstration of interference is done in class. A Slinky" is stretched out from end to end. Three cups are placed on the ground, positioned just to the side of...
- Q Which lists the correct steps that occur when using a diffraction grating to bend light? diffracted wavelengths reach the eyes ? different wavelengths of light bend at different angles ?...
- Q If laser light is reflected from each of the items below, a diffraction pattern appears. The pattern arises because all these devices contain parallel tracks of information that act as...
- Q A laser has a wavelength of 581 nm. A grating and a lens are used to split the beam into three parallel beams spaced 1.85 cm apart. If the slit...
- Q When a real image is formed by a diverging lens, which of the following statements are trueThe sign of image position (s') will have a negative valueThe image must be...
- Q Three electromagnetic waves E? = Eosinwt, E? = Epcoswt and E3 = 2Eosin(wt + ?) are superimposed at a point. If intensity due to wave E? at that point is...
- Q A soap film (n=1.33) in the air is 270 nm thick. If it is illuminated with white light at normal incidence what colour will it appear to be in reflected...
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