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WARRIOR [948]
3 years ago
13

When a highly coherent beam of light is directed against a very fine wire, the shadow formed behind it is not just that of a sin

gle wire but rather looks like the shadow of several parallel wires. The explanation of this involves:
A. Refraction
B. Diffraction
C. Reflection
D. the Doppler Effect
E. an optical illusion
Physics
2 answers:
Ivenika [448]3 years ago
7 0

Answer:

Option "D" is the correct answer.

Explanation:

It is only optical illusion that best describes the formation of other multiple images which are not based on other scientific mechanism. Thank you.

Dimas [21]3 years ago
6 0

Answer:

B. Diffraction

Explanation:

Diffraction is the process that occurs when a wave is blocked by an obstacle.The obstacle could be a tiny hole or a much larger object.The waves have to pass through and they usually find a way by bending around the corners of the obstacle or through it depending on the nature and size of the obstacle.

The diffracted rays forms shadow at the back of the obstacle. The shadow is usually made up of several parallel rays.

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5 0
3 years ago
Why must objects be cooled before their mass is determined on a sensitive balance?
zubka84 [21]
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3 years ago
To produce change in motion, a force must be a(n)
Bas_tet [7]
It'd be an unbalanced force
5 0
3 years ago
A 3.00 kg object is moving in the XY plane, with its x and y coordinates given by x = 5t³ !1 and y = 3t ² + 2, where x and y are
Hatshy [7]

Answer:

The net force acting on this object is 180.89 N.

Explanation:

Given that,

Mass = 3.00 kg

Coordinate of position of x= 5t^3+1

Coordinate of position of y=3t^2+2

Time = 2.00 s

We need to calculate the acceleration

a = \dfrac{d^2x}{dt^2}

For x coordinates

x=5t^3+1

On differentiate w.r.to t

\dfrac{dx}{dt}=15t^2+0

On differentiate again w.r.to t

\dfrac{d^2x}{dt^2}=30t

The acceleration in x axis at 2 sec

a = 60i

For y coordinates

y=3t^2+2

On differentiate w.r.to t

\dfrac{dy}{dt}=6t+0

On differentiate again w.r.to t

\dfrac{d^2y}{dt^2}=6

The acceleration in y axis at 2 sec

a = 6j

The acceleration is

a=60i+6j

We need to calculate the net force

F = ma

F = 3.00\times(60i+6j)

F=180i+18j

The magnitude of the force

|F|=\sqrt{(180)^2+(18)^2}

|F|=180.89\ N

Hence, The net force acting on this object is 180.89 N.

3 0
3 years ago
What is kinetic energy
Elena L [17]

Answer:

energy which a body possesses by virtue of being in motion.

Explanation:

7 0
3 years ago
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