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weeeeeb [17]
3 years ago
11

In a laboratory experiment, a diffraction grating produces an interference pattern on a screen. If the number of slits in the gr

ating is increased, with everything else (including the slit spacing) the same, thenA.The fringes stay the same brightness and get closer together.B.The fringes stay the same brightness and get farther apart.C.The fringes stay in the same positions but get brighter and narrower.D.The fringes stay in the same positions but get dimmer and wider.E.The fringes get brighter, narrower, and closer together.
Physics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

C

Explanation:

Diffraction grating is an optics tool used when there is a need to separate light of different wavelengths using a high resolution. This tool is used in:

  • Optical pulse compressing devices
  • Spectrometers
  • Lasers
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Answer:

The three remaining light bulbs will remain dark.

Explanation:

Current can only flow if there is a complete circuit through all of the series elements. With one element removed, no current can flow, so the remaining light bulbs cannot light up.

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Describe how an oscilloscope should be used to measure the frequency of the sound wave from the sonometer
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Answer:

            T = reading (cm) time base (s / cm)

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Explanation:

An oscilloscope is a piece of equipment that allows you to visualize and measure a wave that reaches you, in the case of having a sonometer this transforms the sound wave into an electrical signal to be introduced through one of the voltage channels of the equipment, on the screen we will see the oscillating alternating signal, if it is fixed we can make the reading, if it is moving the time base and the trigger must be adjusted to stop it.

In the oscilloscope we can read the period of the signal, this is the time it takes for the signal to repeat itself with this value, we can calculate the frequency with the formula, for the reading of the period the distance is measured on the labeled screen and multiplied by the time base

         

            T = reading (cm) time base (s / cm)

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The answer is option D)
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False

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