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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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The temperature inside a vehicle can rise ____ degrees higher than the outside temperature.
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Answer:

Generally, 40 to 50 degrees

Explanation:

About the heat-up over time, whether the windows of a vehicle are locked or partially open makes very little difference. In both situations, in an internal temperature of a vehicle, even at an outside temperature of only 72 ° F, it may exceed approximately 40 ° F within one hour. This happens mainly due to the greenhouse effect that is the heat inside the car is trapped and not allowed to escape. Thus, raising the temperature of the vehicle.

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3 years ago
The ability of a singer to shatter glass is due to: <br> bending of a wave around an obstacle
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The ability of singers to shatter glass is due to the control of frequency in their voices. The sound waves will vibrate the air particles that surround the glass at its resonant frequency. The glass will break if a singer sings too loudly.
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3 years ago
Read 2 more answers
A plant worker accidentally breathes some stored gaseous tritium, a beta emitter with maximum particle energy of 0.0186 MeV. The
andrey2020 [161]

Answer:

400 milli-rems

Solution:

As per the question;

Maximum energy of particle, E_{m} = 0.0186\ MeV

Weight, w = 1 kg

Energy absorbed, E = 4\times 10^{- 3}\ J

Now,

Equivalent dose is given by:

D_{eq} = \frac{E}{w}  =\frac{4\times 10^{- 3}}{1} = 4\times 10^{- 3}\ J/kg

1 Gy = 1 J/kg

Also,

1 Gy = 1\times 10^{5}\ milli-rems

Therefore,

Dose equivalent in milli-rems is given by:

D_{eq} = 4\times 10^{- 3}\times 1\times 10^{5} = 400\ milli-rems

8 0
3 years ago
WILL GIVE BRAINLIEST
krek1111 [17]

Answer:

I think d

Explanation:

6 0
2 years ago
The addition of 9.0×105 J is required to convert a block of ice at -10 ∘C to water at 11 ∘C. i need help this is due in less tha
Law Incorporation [45]

The mass of the block of ice is 2.24 kg

Explanation:

The amount of heat needed for the whole process consists of three different amounts of heat:

Q_1: the amount of heat needed to raise the temperature of the block of ice from -10^{\circ}C to 0^{\circ}C

Q_2: the amount of heat needed to melt the block of ice at melting point

Q_3: the amount of heat needed to raise the temperature of the water from 0^{\circ}C to 11^{\circ}C

The total amount of heat needed can be written as

Q=Q_1+Q_2+Q_3=mC_i\Delta T_1 + m\lambda_f + mC_w\Delta T_3

where we have:

Q=9.0 \cdot 10^5 J (total amount of heat required)

m is the mass of the block of ice

C_i = 2108 J/kg^{\circ}C is the specific heat of ice

\lambda_f=3.34\cdot 10^5 J/kg is the latent heat of fusion of ice

C_w=4186 J/kg^{\circ}C is the specific heat capacity of water

\Delta T_1 = 0-(-10)=10^{\circ}C is the change in temperature in the 1st process

\Delta T_3 = 11-0=11^{\circ}C is the change in temperature in the 3rd process

Solving the equation for m, we find the mass of the block of ice:

m=\frac{Q}{C_i\Delta T_1 + \lambda_f+C_w\Delta T_3}=\frac{9.0\cdot 10^5}{(2108)(10)+3.34\cdot 10^5+(4186)(11)}=2.24 kg

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

8 0
3 years ago
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