Total Internal Reflection: A light beam is traveling inside a glass block that has an index of refraction of 1.46. As this light arrives at the surface of the block, it makes an angle of 53.0° with the normal. At what angle with the normal in the air will it leave the block?
A. It will not leave.
B. 59.1°
C. 43.2°
D. 33.2°
Answer: A
You might also like to view...
Buoyancy: If a ship has a mass of 10 million kilograms, what volume of fresh water must it displace in order to float? The density of water is 1000 kg/m3.
A. 1010 m3 B. 1012 m3 C. 104 m3 D. 107 m3 E. 108 m3
A planet is much more massive than the star it orbits
a. True b. False Indicate whether the statement is true or false
Two particles that will be deflected by a magnetic field are __________ and __________
Fill in the blank(s) with correct word
This is negative throughout the region, therefore, T(y) is concave down throughout the region and the temperature at y = 1.6 mm is indeed the maximum temperature. These calculations are verified by the graph of T(y). Inserting ymax into the expression for T(y) yields: Tmax = T(0.00161 mm) = 48.8°C.
GIVEN
A journal bearing
Diameter (D) = 100 mm = 0.1 m
Clearance (H) = 0.5 mm = 0.0005 m
Rotational speed (@) = 3600 rpm
Oil properties
? Density (p) = 800 kg/m3
? Viscosity (?) = 0.01 kg/ms
? Thermal conductivity (k) = 0.14 W/(m K)
Temperature of bearing surface (Tb) = 60°C
FIND
(a) Temperature distribution in the oil film
ASSUMPTIONS
Steady state
Uniform and constant bearing surface temperature
Constant fluid properties
The journal surface is insulated (negligible heat transfer)
SKETCH
