10) If the absolute refractive index of a medium is √2, what is the critical angle of that medium with respect to air? (a) 24° (b) 30° (c)45° (d) 60°​

The two required components for a generator are

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.