Answer:
The wavelength of the light is 555 nm.
Explanation:
according to Bragg's law..
n×λ = d×sin(θ)
n is the fringe number
λ is the wavelength of the light
d is the slit separation
θ is the angle the light makes with the normal at the fringe.
A convex mirror of focal length 10 cm forms an upright and magnified image of a real object placed at a distance of 20 cm from the mirror. A concave lens causes light to diverge. A concave mirror can produce either real or virtual images. ... The images produced by a convex mirror are smaller than the object it reflects.
It would be using Newton's First Law. Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will remain in their state of motion unless a force acts to change the motion.
Answer:
Explanation:
This is the equation that defines the power consumed by an electrical circuit. It is normally defined as the product of the voltage applied (V) times the current (I) that runs through it. And in the case of a resistive circuit (resistors in the circuit totaling a certain resistance R), one can use Ohm's law to replace the voltage by the product of the current (I) times the resistance (R), obtaining then the square of the current:
Answer and Solution:
As per the question:
Mass of each hobo is
Velocity of the either hobo is 'u'
Mass of the flatcar is
Now,
(a) Suppose be the recoil velocity, then
Relative speed of either hobo w.r.t ground just after their jump is
Now, by the principle of conservation of momentum:
(1)
(b) Suppose the recoil velocity of the flatcar be after the jump of the first hobo and after the jump of the second hobo.
Now, applying the of conservation of momentum, after the jump of the first hobo is the same as done in part (a), but when only one hobo jumps, the mass of the second hobo remains:
(2)
Now, by conservation of momentum for the second jump:
(3)
Now, from eqn (1), (2) and (3):
It is clear that > v_{rc}