Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 30. What is the angle of reflection from the surface?
a. 30
c. 60
b. 75
d. 15
Question 2
An inventor develops a stationary cycling device by which an individual, while pedaling, can convert all of the energy expended into heat for warming water. What minimum power must be generated if 300 g of water (enough for 1 cup of coffee) is to be heated in 10 min from 30C to 90C? (1 cal = 4.186 J, the specific heat of water is 4 186 J/kg C)
a. 9400 W
c. 160 W
b. 590 W
d. 130 W
The path of light through the cornea, iris, lens, and striking the retina.
Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Interactions of Light and Matter
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
A microwave telescope “sees” microwave light coming from all directions in the sky…