The velocity of top layer of a 2-layer model is 1.34 kms and that of the bottom is 2.1 kms-1. What are the critical angle of refraction and critical distance Xc if h is 31?
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- Question 4 te p rieipee Adleet yret haslieparatm divtance ol 0.de mm. The fint height fringe ppcas S mm aluve the middle of the central hright fimer, when the alita are ithamatef with a laner of wavelength S12 n. What in the dstance to the sTEn from the slitu? O 0,65 m O n45 m O 0.77 m O 1.12 m O 0.56 ma on (0) light is incident per pendicularly sus pended in air. The shortest thick ness thin The wavelength of of light tilm that produces fully cons tructive in terferen ce of refe cted is 500nm. the light iS 0.1 What is the in dix of re fra ction of the thin film ?Substances A and B have retention times of 15.32 min and 16.92 min, respectively, on a 50.0-cm column. An unretained species passes through the column in 1.15 min. The peak widths (at base) for A and B are 1.11 min and 1.21 min, respectively. What is the column resolution?
- Determine the Nyquist rate of sampling required for g(t) = 10 cos 1007tt cos 2007tt %3DPlease type the answer instead of hand writtingConsider a multimode fiber and a light source. In the linear regions, its pulse spread per unit length is 30 ns/km. The spread is due to chromatic dispersion. Plot the electrical and optical bandwidths versus fiber length for 0 to 5 km. Also plot the maximum RZ and NRZ data rates.
- Find the approximate solid angle for a source-detector arrangement whereby a 5-cm diameterdetector is placed 30-cm from a point source which emits gammas isotropically. Formally, onewould find a solid angle by integrating sinθ dθ dφ over appropriate θ and φ limits given by thesize of the detector at the given distance from the source. However, a good approximation is touse the ratio of the detector area to the surface area of a sphere at the detector distance to findthe fraction of 4-pi which the detector coversAn unknown material was ground to a fine powder and subjected to x-ay diffraction measurement using a Bruker V8 system with Cukα radiation with wavelength λ= 1.452 Å. The following 2θ values were recorded: 28.5o, 47.4o Identify the miller indices for the two XRD peak.Please asap
- Question 2 A center-fed dipole is excited by a current Io =9.3 A. If the dipole is 1.1 cm in length, determine the maximum radiated power density Smax of the E-M wave of frequency 490 MHz at a distance of 700 m. Answer to the 4th digit precision after the decimal place (eg. 1.2345). Smax -(μW/m²) Your Answer: Answer Question 3 An antenna with a radiation efficiency of 89.0% has a directivity of 6.0 dB. What is its gain G in decibels? Answer to the 4th digit precision after the decimal place (eg. 1.2345). G= Your Answer: Answer dB.I witt give downite fr bAong Q. 1. What will be the fringe shift in Michelson-Morely experiment if the effective length of each path is 6 m and light wavelength of 6000 Å is used. Earth's velocity is 3 x104 m/s-1 and c = 3 x 108 m/s-1. %3Dbirds of prey have keen eyesight. If the pupil of an eagle has diameter of 10mm, at what altitude could it fly and still see clearley a mouse 7cm long? consider wavelength=550nm.