The surfaces of a Dewar flask are silvered for the purpose of minimizing heat transfer by what process?
a. conduction
b. radiation
c. convection
d. vaporization
b
You might also like to view...
A comet grows tails (plasma tail and dust tail) when it comes close to the Sun. Which of the following diagrams shows a comet's tails correctly oriented as they appear along its orbit?
In a single slit diffraction experiment, the width of the slit is 3.1 x 10-5 m and the distance from the slit to the screen is 2.2 m
If the beam of light of wavelength 600 nm passes through the slit and forms a diffraction pattern on the screen, what is the linear distance on the screen from the center of the diffraction pattern to the second dark fringe? A) 3.9 cm B) 4.2 cm C) 6.3 cm D) 2.1 cm E) 8.5 cm
The energy conversion represented by an automobile speeding up along a level road is
A) chemical to kinetic. B) chemical to gravitational. C) thermal to chemical. D) gravitational to kinetic. E) kinetic to chemical.
Blue light will not eject electrons from a certain metal; however, which one of the following may possibly eject electrons from that metal?
a. red c. infrared b. green d. ultraviolet