1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nesterboy [21]
3 years ago
9

When a DVD is played, a laser light hits the surface of the disk and then returns to the detector. An illustration of DVD with a

n arrow pointing toward a spot on the disk labeled detector. Which wave phenomenon allows the DVD player to work? absorption interference reflection refraction
Physics
1 answer:
Ierofanga [76]3 years ago
5 0

Answer:

Reflection

Explanation:

The wave phenomenon that allows the DVD player to work is REFLECTION.

Reflection is defined as the repropagation of incident light striking a plane surface.

The light ray striking the surface is incident ray while the repropagated light ray is the reflected ray. The DVD was able to play because the laser light that hits the surface of the disk was able to reflect back and returns to the detector. The detector senses the light and cause the DVD to play. If the laser light didn't reflect, assuming it was absorbed by the surface of the disk, the detector wouldn't have detected the light and the DVD wouldn't have played.

You might be interested in
A 38.2 kg wagon is towed up a hill inclined at 17.5 ◦ with respect to the horizontal. The tow rope is parallel to the incline an
Tema [17]

Answer:

v = 8.57 m/s

Explanation:

As we know that the wagon is pulled up by string system

So the net force on the wagon along the inclined is due to tension in the rope and component of weight along the inclined plane

So as per work energy theorem we know that

work done by tension force + work done by force of gravity = change in kinetic energy

F_t . d - (mgsin\theta)(d) = \frac{1}{2}mv^2 - 0

so we have

F_t = 129 N

\theta = 17.5^o

m = 38.2 kg

d = 85.4 m

so now we have

129(85.4) - (38.2)9.8sin17.5 (85.4) = \frac{1}{2}(38.2) v^2

v = 8.57 m/s

7 0
3 years ago
What other kind of simple machine is a special kind of lever?
ehidna [41]

saitama is the strongest

4 0
3 years ago
Is the frictional force the same as the applied force when the net force equals zero?
DerKrebs [107]

Answer:

Since the net force is to the right (in the direction of the applied force), then the applied force must be greater than the friction force. The friction force can be determined using an understanding of net force as the vector sum of all the forces.

Explanation:

6 0
3 years ago
What is true about solar energy hitting earth?
polet [3.4K]
B. It’s the same roughly at all latitudes
6 0
2 years ago
Could someone help me with this question please?
BabaBlast [244]
You are correct...amplitude will be the answer
3 0
4 years ago
Read 2 more answers
Other questions:
  • Compare and contrast electrical and magnetic forces
    12·1 answer
  • a police officer finds 60 m of skid marks at the scene of a car crash. Assuming a uniform deceleration of 7.5 m/s to a stop , wh
    10·1 answer
  • Please answer as soon as possible. <br><br> A Physics question about electricity and circuits.
    11·1 answer
  • The theory that the outer core of the Earth is
    15·1 answer
  • Scientific method is a model or guide used to solve problems true or false
    13·1 answer
  • Three liquids that will not mix are poured into a cylindrical container. The volumes and densities of the liquids are 0.50 L, 2.
    11·1 answer
  • No interior de um calorímetro de capacidade térmica 6 cal/°C encontram-se 85 g de um líquido a 18°C. Um bloco de cobre de massa
    15·2 answers
  • When a cell divides to help repair an organism, what type of cell division is it?
    7·1 answer
  • Prove p=f/a science chapter pressure​
    6·1 answer
  • Catching a wave, a 77-kg surfer starts with a speed of 1.3 m&gt;s, drops through a height of 1.65 m, and ends with a speed of 8.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!