Destructive interference occurs when path difference = ½-integer
multiple of the wavelength i.e. Minima in diffraction pattern given by,
= ! +
# λ = !1 +
# λ = 3λ/2
m
        
             
        
        
        
The answer is A.Yes
Explanation:
The amplitude of a wave is the height of a wave as measured from the highest point of the wave to the lowest on the wave.
 
        
             
        
        
        
<u>Answer:</u> The Young's modulus for the wire is 
<u>Explanation:</u>
Young's Modulus is defined as the ratio of stress acting on a substance to the amount of strain produced.
The equation representing Young's Modulus is:

where,
Y = Young's Modulus
F = force exerted by the weight  = 
m = mass of the ball = 10 kg
g = acceleration due to gravity = 
l = length of wire  = 2.6 m
A = area of cross section  = 
r = radius of the wire =  (Conversion factor:  1 m = 1000 mm)
      (Conversion factor:  1 m = 1000 mm)
 = change in length  = 1.99 mm =
 = change in length  = 1.99 mm = 
Putting values in above equation, we get:

Hence, the Young's modulus for the wire is 
 
        
             
        
        
        
Answer:
B. Acidic
Explanation:
Neutral an Basic solutions wouldn't create any reaction