Question

How many photons per second are emitted by a 5.5-W LED light bulb, if the emission is at a wavelength of 550 nm? 1.23E22 photons/s O 5.07E21 photons/s 3.62E19 photons/s O O 1.52E19 photons/s 4.27E19 photons/s Question 11 5 pts A rotating generator has a square planar coil consisting of 100 turns. The coil rotates 60 times per second in a magnetic field of 1.25T and yields a peak output voltage of 300 V. What is the length of one side of the coil? 0.64 cm 8.0 cm 64 cm 80 cm 120 cm

Answer 1

Number S of photons 5.5 6.626x1034 X 550X10? 5-6x550x169 Number of Photons 14 7.626 X10 -34 x3x100 ४ 1-9 1.5240 photons / Cyth option (11 N=100 = 60 9 B = 1.25 T 9 Vo = 300V Vo =27NB Af to 2 A= 300 LIN BE 207 (100) (1.25) (60) A = 0.006366 m² + 1 = P.ocm (and oftion