(a) 2V and 5 Hz(b) 2V and 50HZ(c) 200V and(d) 200V and 50HZFor an optical fiber, which of the following is a correct statement aboutOPTICAL FIBERCOATINGrefractive index?CORE(a) ncore> ncladding(b) ncladding> Ncore(c) ncore = Ndadding(d) ncore= 1CLADDINGbirdThe water waves in the figure are travelling at a speed of2.5 m/s. The time that it takes to reach the bird is(a) 2s(b) 5 s5 m-23ws(c) 4 s(d) 1 sA device used to convert, electrical energy into mechanical energy is(a) generator(b) motor(c) transformer(d) optical fiberIn a sound wave, the compression is a region of(a) high particle density and high pressure(b) high particle density and low pressure(c) Low particle density and low pressure(d) Low particle density and high pressureFor an alternating current of amplitude 8A and frequency 50 Hz, the value of the current at a time0.003s is(a) 6.46A(b) 0 A() 0.13 A(d) 7.60A

Answered: Image /qna-images/answer/fbd684b1-62d5-40ec-a317-670352037156.jpg

For an optical fiber, which of the following is a correct statement about OPTICAL FIBER COATING refractive index? CORE (a) ncore> ncladding (b) ndadding> ncore (c) ncore = ndadding (d) ncore = 1 CLADDING The water waves in the figure are travelling at a speed of 2.5 m/s. The time that it takes to reach the bird is bird (a) 2 s (b) 5 s 5 m 23ws (c) 4 s (d) 1 s

For an optical fiber, which of the following is a correct statement about OPTICAL FIBER COATING refractive index? CORE (a) ncore> ncladding (b) ndadding> ncore (c) ncore = ndadding (d) ncore = 1 CLADDING The water waves in the figure are travelling at a speed of 2.5 m/s. The time that it takes to reach the bird is bird (a) 2 s (b) 5 s 5 m 23ws (c) 4 s (d) 1 s

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 58P: A telescope can be used to enlarge the diameter of a laser beam and limit diffraction spreading. The...

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