Answer:
0.145 m
Explanation:
Data provided in the question:
wavelength of red light, λred = 656 nm = 656 × 10⁻⁹ m
wavelength of blue light, λblue = 486 nm = 486 × 10⁻⁹ m
line density = 500 per mm
length, L = 1.3 m
d = 1 mm / 500 lines
= 0.002 mm = 0.002 × 10⁻⁶ m
m = 1 [for the first order bright fringe]
Now,
The positions can be determined by using the formula
θ =
& y = Ltan(θ)
thus,
θred =
= 19.15°
yred = Ltan(θred)
= (1.5) × tan(19.15°)
= 0.521 m
similarly,
θblue =
= 14.1°
yblue = Ltan(θblue)
= 1.3 × tan(14.1°)
= 0.376 m
Hence,
distance between the first-order red and blue fringes
= 0.521 m - 0.376 m
= 0.145 m
<h2>
<u>Given</u>:</h2>
Horizontal distance between two boats = x = 14 m
One boat is at trough, the other is at crest.
As there is no crests between them meaning the boat are next to each other.
Wavelength is the distance between two consecutive crests/troughs = w
The distance between a crest and a trough next to it = w/2
Complete cycles = c = 5
Time taken for c cycles = t = 15 s
Vertical distance between two boats = y = 2.4 m
<h2>
<u>To find</u>:</h2>
wavelength = w = 2x = 28 m
Amplitude = A = Displacement from mean to extreme position = y/2 = 1.2 m
Time period for one cycle = T = t/c = 15/5 = 3 s/cycle
frequency = 1/T = 1/3 = 0.33 hertz
speed = wavelength/Period = w/T = 28/3 = 9.33 m/s
The dimension of soccer field in ft is 377.315 ft long and 277.885 ft in width.
The dimension of soccer field in ft is 4527.78 in long and 3334.62 in in width.
As it is given that 1 m =3.281 ft
Therefore the length of the soccer field in ft is
115*3.281=377.315 ft
And width of the field is 85*3.281=277.885 ft
We know that 1 ft =12 in
Therefore the length of the soccer field in in is
377.315*12=4527.78 in
And width of the field is 277.885 *12=3334.62 in
hindi ko den alam ahh sorryyyy
Answer:
C
Explanation:
Diagram C is the correct answer, because the ball is at the point with the highest height relative to the ground, in this way all the kinetic energy has been transformed into potential energy.
We must remember that potential energy is defined as the product of mass by gravity by height
Ep = m*g*h
where:
m = mass [kg]
g = gravity acceleration [m/s²]
h = elevation [m]
So when we have a great value for h in the above equation, we will have a big value for potential energy.