Which of the following situations will allow interference patterns to be noticed

Question

Which of the following situations will allow interference patterns to be noticed?

screen is 3m away from 2 red LED lamps, 1mm apart

screen is 3m away from 2 HeNe lasers, 4mm apart

radio receiver is far from 2 radio broadcast antennas for different radio stations

screen is 2m away from a mask with 2 slits, 0.1mm apart, and is 3m away from an incandescent light.

radio receiver is far from 2 radio broadcast antennas for a single radio station

screen is 3m away from a mask with 2 slits, 1mm apart, and 4m away from a HeNe laser

screen is 1m away from a mask with 2 slits, 0.1mm apart, and is 2m away from a mask with one slit, and is 3m away from an incandescent light.

1

screen is 3m away from 2 red LED lamps, 1mm apart

2

screen is 3m away from 2 HeNe lasers, 4mm apart

3

radio receiver is far from 2 radio broadcast antennas for different radio stations

4

screen is 2m away from a mask with 2 slits, 0.1mm apart, and is 3m away from an incandescent light.

5

radio receiver is far from 2 radio broadcast antennas for a single radio station

6

screen is 3m away from a mask with 2 slits, 1mm apart, and 4m away from a HeNe laser

7

screen is 1m away from a mask with 2 slits, 0.1mm apart, and is 2m away from a mask with one slit, and is 3m away from an incandescent light.

Explanation / Answer

screen is 3m away from a mask with 2 slits, 1mm apart, and 4m away from a HeNe laser

6

screen is 3m away from a mask with 2 slits, 1mm apart, and 4m away from a HeNe laser

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