When a beam of light passes at an oblique angle into a material of lower optical density, the angle of
incidence is
a. less than the angle of reflection.
b. greater than the angle of refraction.
c. greater than the angle of reflection.
d. less than the angle of refraction

Penn Foster Students: less than the angle of refraction

question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.