Answer:
Explanation:
separation between slit d = 1.2 x 10⁻⁴ m
distance of screed D = 3.5 m
distance of second order right fringe
= 2λD / d where λ is wavelength of light .
2λD / d = .0375
2 x λ x 3.5 / 1.2 x 10⁻⁴ = .0375
λ = 6428 x 10⁻¹⁰ m
= 643 nm .
Answer:
tell ke first ,what will happen in zero gravity?
The final speed of the combined masses is 0.21 m/s
Applying the law of conservation of momentum:
Total momentum before collision = Total momentum after collision.
⇒ Formula:
MU+mu = V(M+m).................. Equation 1
⇒ Where:
- M = mass of the first body
- m = mass of the second body
- U = Initial speed of the first body
- u = Initial speed of the second body
- V = common final speed.
From the question,
⇒ Given:
- M = 0.24 kg
- U = 0.60 m/s
- m = 0.26 kg
- u = -0.20 m/s (traveling in opposite direction)
⇒ Substitute these values into equation 1
- 0.24(0.6)+0.26(-0.20) = V(0.24+0.2)
⇒ Solve for V
- 0.144-0.052 = 0.44V
- 0.44V = 0.092
- V = 0.092/0.44
- V = 0.209
- V ≈ 0.21 m/s
Hence the final speed of the combined masses is 0.21 m/s
Learn more about speed here: brainly.com/question/4931057