If you put a straw into a glass of water, the straw looks bent, although nothing has really happened to the straw. The term that describes this property of light is

8. What factors must be considered when changing or enhancing a design?

For a DC coupled amplifier with a single high frequency pole, the phase of the gain approaches 90 degrees at frequencies well above the upper corner frequency. True or false?

Write a function to find the factors of an input number. The function should have one input n and a single output of a vector whose entries are the factors of n. The only built in functions you are allowed to use are mod or rem (I would prefer mod).

Which of the following statements are correct? (a) A substance will emit radiation at a particular wavelength only (b) All substances emit radiation (c) Only some substances emit radiation (d) Bodies black in colour are known as black bodies

At steady state, a reversible heat pump cycle discharges energy at the rate to a hot reservoir at temperature TH, while receiving energy at the rate from a cold reservoir at temperature TC.

The Reynolds number, rhoVD/μ is a very important parameter in fluid mechanics. Determine its value for ethyl alcohol flowing at a velocity of 4 m/s through a 2-in.-diameter pipe.

Work done by a system during a process can be considered as a property of the system. a) True b) False

When the compression process is non-quasi-equilibrium, the molecules before the piston face cannot escape fast enough, forming a high-pressure region in front of the piston. It takes more work to move the piston against this high-pressure region.

hypothetical A-B alloy of composition 40 wt% B-60 wt% A at some temperature is found to consist of mass fractions of 0.66 and 0.34 for the α and β phases, respectively.

10. Which of these requires a wheel alignment after replacement? A. Struts B. Shocks C. Both