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- The speed of sound in air is 340 m/s, and the speed of light is 3.0 X 108 m/s. What frequency oflight has the same wavelength as a 200.0 Hz sound wave?Differentiate the following thermal and optical properties: a. Thermal conductivity vs. thermal diffusivity b. Reflectance vs. transmittanceSUPPOSE THE AMBIENT TEMPERATURE IS 20degrees CELSIUS, AND THE HOT RESERVOIR CONSISTS OF A SPHERICAL TANK WITH A RADIUS OF 4.00 m, THAT ACTS AS AN IDEAL EMITTER OF RADIATION. IF ALL THE RADIANT ENERGY EMITTED BY THE TANK COULD BE CAPTURED, WHAT IS THE AVERAGE AMOUNT OF WORK THAT COULD BE DONE EACH SECOND? ( please only answer if your 100% correct) (show work)
- Interference can occur in thin films. Why is it important that the films be thin? Why don’t you get these effects with a relatively thick film? Where should you put the dividing line between “thin” and “thick”? Explain your reasoningWhat is the equation for 3D heat transfer?What is experimental stress analysis? Methods used in experimental stress analysis Explain the Photoelasticity method with its principles by writing their names.
- Can you answer part c of problem 1 in the image?Q4. Based upon the reradiating properties of absorptivity, reflectivity and transmissivity, how would you distinguish between the following:Black body, white body, transparent body and opaque body.Q.6/ A plano-convex lens is to be constructed out of glass (u=1.5), so that it has a focal length of 20 cm.calculate the following: 1- The radius of curvature of the curved surface. 2- The velocity of light in the glass.
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