In a double-slit interference experiment, the distance y of the maximum of order m from the center of the observed interference pattern on the screen is

where D=5.00 m is the distance of the screen from the slits, and

is the distance between the two slits.
The fringes on the screen are 6.5 cm=0.065 m apart from each other, this means that the first maximum (m=1) is located at y=0.065 m from the center of the pattern.
Therefore, from the previous formula we can find the wavelength of the light:

And from the relationship between frequency and wavelength,

, we can find the frequency of the light:
Answer:
Aloe, Tulsi, Neem, Turmeric, and Ginger are medicinal plants that can help with a variety of diseases. Ginger, green tea, walnuts, aloe, pepper, and turmeric are just a few of these plants. Some plants and their derivatives are key sources of active compounds used in aspirin and toothpaste, among other things.
Explanation:
Plant name: Uses:
1. Marshmallow: //// Relief from aching muscles and pain in muscle, Heals insect bite. ////
2.California poppy //// Relieves tension, Removes nervous system
3. Tulsi //// Cures sore throat, Cures fever and asthma
4. Neem //// Cures skin diseases, Cures diabetics
5. Aloevera //// Heals burns, Relieves constipation
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Answer:
option (B) is the correct option.
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Answer:
. Doppler ultrasound is based on absorption of sound, and other
ultrasound technology is based on reflection.D.
Explanation: