3 years ago

Why do you see colors when you look at reflected light from a cd

1 answer:

4 0

The colors that you see on the CD are created by white light reflecting from ridges in the metal. When light reflects off or passes through something with many small ridges or scratches, you often get rainbow colors and interesting patterns. They are called interference patterns.

You might be interested in

What is four possible energy sources for a circuit

VashaNatasha [74]

<span>electric, solar, wind, and geothermal.</span>

8 0

3 years ago

Read 2 more answers

a man hikes 6.6 km north along a straight path with an average velocity of 4.2 km/h to the north. he rest at a bench for 15 min.

SSSSS [86.1K]

Answer:

2.6h

Explanation:

I attached the image below of the work hope you can see it. Hope this helps!

6 0

2 years ago

A block with a mass of 0.28 kg is attached to a horizontal spring. The block is pulled back from its equilibrium position until

krek1111 [17]

Answer:

Explanation:

For spring

$n=\sqrt{\frac{k}{m} }$

where n is frequency of oscillation and k is force constant and m is mass

Putting the values

$1.2=\sqrt{\frac{k}{.28} }$

k = .4032 N/m

F= k x

where F is force , k is force constant and x is extension

Putting the given values

1 = .4032 x

x = 2.48 m

8 0

2 years ago

What is the direction of the net force that acts on an object undergoing uniform circular motion?

valentinak56 [21]

Answer B. the direction of force is the same

7 0

3 years ago

Efficincy of simple machine is 60% what does it mean?<br>

umka2103 [35]

Explanation:

By the statement, Efficiency of a machine is 60% it is meant that 'The work output is 60% of the work input'. If you apply 100J of energy for a machine, it will be able to life load of 60 J only

7 0

2 years ago