A Jamin interferometer is a device for measuring or for comparing the indices of refraction of gases. A beam of monochromatic light is split into two parts, each of which is directed along the axis of a separate cylindrical tube before being recombined into a single beam that is viewed through a telescope. Suppose we are given the following, • Length of each tube is L = 0.4 m. • λ= 598 nm. Both tubes are initially evacuated, and constructive interference is observed in the center of the field of view. As air is slowly let into one of the tubes, the central field of view changes dark and back to bright a total of 198 times. (a) What is the index of refraction for air? (b) If the fringes can be counted to ±0.25 fringe, where one fringe is equivalent to one complete cycle of intensity variation at the center of the field of view, to what accuracy can the index of refraction of air be determined by this experiment?

1. An arrangement of three charges is shown below where q₁ = 1.6 × 10-19 C, q2 = -1.6×10-19 C, and q3 3.2 x 10-19 C. 2 cm Y 93 92 91 X 3 cm (a) Calculate the magnitude and direction of the net force on q₁. (b) Sketch the direction of the forces on qi

(Figure 1)In each case let w be the weight of the suspended crate full of priceless art objects. The strut is uniform and also has weight w  Find the direction of the force exerted on the strut by the pivot in the arrangement (a). Express your answer in degrees. Find the tension Tb in the cable in the arrangement (b). Express your answer in terms of w. Find the magnitude of the force exerted on the strut by the pivot in the arrangement (b). Express your answer in terms of w.

(Figure 1)In each case let ww be the weight of the suspended crate full of priceless art objects. The strut is uniform and also has weight w.  Find the direction of the force exerted on the strut by the pivot in the arrangement (b). Express your answer in degrees.

A 70.0 cm, uniform, 40.0 N shelf is supported horizontally by two vertical wires attached to the sloping ceiling (Figure 1). A very small 20.0 N tool is placed on the shelf midway between the points where the wires are attached to it. Find the tension in the left-hand wire. Express your answer with the appropriate units.

Find the total bind Mev. binding energy for 13 Carbon, 6C (atomic mass = 13.0033554)

What is the 27 energy absorbed in this endothermic Auclear reaction 2] Al + 'n → 27 Mg + ! H? (The atom mass of "Al is 26.981539u. and that of 11 Mg is 26.984341u) MeV

What is the energy released in this nuclear reaction 1 F + "', H-1 O+ He? 19 19 16 (The atomic mass of 1F is 18.998403 u, and that of 20 is 15.9949154) MeV.

What is the energy released in this B+ nuclear reaction خالد 2½ Al w/ Mg + ie? (The atomic mass of 11 Al is 23.9999394 and that > of 12 Mg is 23.985041 u) MeV.