Answer:
x = 3 cm
Explanation:
Given that,
The separation between the slits,
The distance from the slits to a screen, D = 2.5 m
Let x is the spacing between the first-order and second-order bright fringes when coherent light of wavelength 600 nm illuminates the slits,
We know that the bright fringe is given by :
So, the spacing between the first-order and second-order bright fringes is :
x = 0.03 m
or
x = 3 cm
So, the spacing between the first-order and second-order bright fringes is 3 cm. Hence, this is the required solution.
Answer:
Waves and surface currents are wind-generated. The atmosphere pushes the ocean surface along. But as the ocean moves, heat is redistributed and eventually tossed back into the atmosphere. The exchange of heat influences the pressure field in the atmosphere, which modifies the wind field.
The characteristic of stars that primarily determines a star's color
is temperature. The correct
answer between all the choices given is the third choice. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.
Answer:
v = 14.32 m/s
Explanation:
According to the principle of conservation of linear momentum, both the momentum and kinetic energy of the system are conserved. Since the two balls are in the same direction of motion before collision, then;
+ = ( + ) v
0.035 × 12 + 0.120 × 15 = (0.035 + 0.120) v
0.420 + 1.800 = (0.155) v
2.22 = 0.155 v
⇒ v =
= 14.323
The velocity of the balls after collision is 14.32 m/s.
The uncertainty in a measured value is the possible variation in a measured value arising due to inaccuracies in the instrument being used. In the case described, the beats are 127 per minute, and the uncertainty is +/-4 beats. This means that the beats may actually be between 123 and 131.
The fractional uncertainty is: 4/127 = 0.031
And the percentage uncertainty is: 4/127 * 100 = 3.1%