Diffraction grating consists of a large number of fine slits.
Light gets split into different colors due to these slits of the diffraction grating.
Thus, diffraction grating produces a pattern of the coloured bands as each light wave passes through the slit at different speeds and different angles.
Number 1 !!!!!!!!!!!!!!!!!
Current is the amount of charged passed divided by elapsed time.
I = Q/Δt
I = current, Q = charge, Δt = elapsed time
We also know an electron has a charge of 1.6×10⁻¹⁹C, so let us find the total charge by multiplying this unit of charge by the total number of electrons:
Q = 1.6×10⁻¹⁹(3×10²⁰) = 48C
We also have Δt = 6s, so let's plug these values in to solve for I:
I = 48/6
I = 8A
Answer:
1281.4 J
Explanation:
F = 298 N
d = 4.3 m
the work done is defined as the product of force applied in the direction of displacement and the displacement.
W = force x displacement
Work is a scalar quantity and its SI unit is Joule.
W = F x d
W = 298 x 4.3 = 1281.4 J