Answer
given,
wavelength of laser light = 632.8 nm
assuming that aperture of lens be equal to dia = 1 mm
now,
When laser light passes through aperture diffraction of light takes place
The first diffraction minima occurs at
where a is the width of aperture
λ is the wavelength of light
p is the angle
p = 0.0363° angle of the first dark ring
Answer:
Crest: the top point of a wave
Trough: the lowest point of a wave
Wavelength: the distance from one crest to the next crest OR from one trough to the next trough
Amplitude: the distance the wave travels from the initial position (that would be that line in the middle) in either direction
Explanation:
Given that,
Radius in which the satellite orbits, r = 6588 km
Solution,
The centripetal force acting on the satellite is balanced by the gravitational force acting between earth and the satellite. Its expression can be written by :
, M is the mass of earth
v = 7782.53 m/s
Let t is the time required to complete one orbit. It can be calculated as :
t = 5318.78 seconds
or
t = 1.47 hour
Therefore, this is the required solution.
Unfortunately, since Legos are made of plastic, they will stick around for millennia if they end up in landfills. Recycling Legos is hard, since they are made with an unusual plastic that is not accepted at many recycling centers. However, Legos are highly reusable.
Answer:When the length of a string is changed, it will vibrate with a different frequency.Shorter strings have higher frequency and therefore higher pitch.