They appear to bend at the surface due to refraction.
They appear to bend at the surface due to diffraction.
They appear to bend at the surface due to interference
The correct answer to the question is: B) They appear to bend at the surface due to refraction.
EXPLANATION:
When light moves from optical rarer medium to optical denser medium, the light rays are bent towards the normal at the point of incidence on the refracting surface. If the order is changed, then the way will be away from the normal.
This property of light is known as refraction which is due to the fact that light has different velocities in different media.
As per the question, the object appears to be bent when it is submerged in water. Actually the object is not bent. Its the light from object which is bent at the air-water interference.
Hence, the correct answer of this question is refraction.
Answer:
answer is b
Explanation:
Answer:
diameter ≅ 3 inches
Explanation:
Use a constant factor, k
Let Hp = horsepower
Let s = speed in rpm
Let d = diameter in inches
to find constant k, using
Hp=46
S=100
d=3 in
To find diameter when;
Hp=74
S=175
k=0.017
d=d inches
d≅ 3 inches
Composition of a rock is determined by the percent of constituent of minerals and elements contained within it.
Explanation:
The composition of a rock is decided by the % of the constituent minerals and components contained inside it.
The minerals that form up rocks have outlined chemical compositions and rigid atomic structures. once daylight strikes the rock's surface, the composition and atomic structure of the various minerals management the wavelengths they absorb or replicate.
b. solar power
c. geothermal power
d. none of the above
Answer;
C. geothermal power
Explanation;
Geothermal power is considered to be a sustainable, renewable source of energy because the heat extraction is small compared with the Earth's heat content. It depends the least on weather.
Geothermal energy is the heat from the Earth. It's clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.
B. A business conducts meetings over the Internet.
O C. A surgeon performs a heart transplant.
D. A singer wins an award for a song she wrote.
the answer is definitely A.