The ciliary muscle of the eye is relaxed under which condition?
a. eye is focused on a distant object
b. eye is focused on a nearby object
c. subject being viewed is well illuminated
d. subject being viewed is dimly illuminated
a
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A 60-W and a 100-W light bulb are connected in parallel to a 120-V outlet. Which bulb draws more current?
A) 60-W bulb B) 100-W bulb C) both the same.
As a system loses the ability to do work, its entropy decreases
Indicate whether the statement is true or false
The stimulated emission of photons from the excited atoms in a gas laser is prompted by which of the following?
a. high voltage b. high flux of electrons c. nearby presence of photons of same wavelength as those emitted d. high temperature
The ultraviolet catastrophe predicts that:
a. all objects should radiate extreme amounts of ultraviolet light. b. as an object gets hotter its light will change from dull red to blue white. c. a black body can absorb an infinite amount of radiation if the radiation is in the ultraviolet region. d. the radiated energy approaches zero as the wavelength approaches zero.