Answer:
The wavelength of the light is .
Explanation:
The band separation for a light wave of wavelength is given by
where is the slit separation, and is the distance to the screen.
Solving the above equation of wavelength we get:
Now, in our case
,
and ;
therefore,
which is the 2nd choice from the options given.
Answer:
Explanation:
The momentum of the 25 kg mass is
If this whole momentum of the object is transferred to the 5.0 kg object then according to the law of conservation of momentum, the momentum of the 25.0 kg object must be transferred to the 5.0 kg object:
C
Because magnet involves 2 opposite poles so therefore it would have to be C
Answer:
261.307 m
Explanation:
b = Base of triangle = 450 m
p = Perpendicular of the triangle
= Angle of the triangle =
From trigonometry
Height of the building = 1.5+259.807 = 261.307 m