An automobile engine has an efficiency of 19.0%. If it produces 23.0 kJ of mechanical work per second, the heat rejected per sec
1 answer:
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Answer:
θ for water = 0.3684°
Explanation:
given data
wavelength λ = 603 nm
angle θ = 0.49°
index of refraction n = 1.33
to find out
angular fringe separation
solution
we know that double slit interference is here
m λ = d sin(θ) .................1
so for air it will be
m λ(air) = d sin(θ)air ...........2
and for water it will be
m λ(water) = d sin(θ)water .............3
now we take here ratio of equation 2 and 3
=
and
ratio of wavelength is =
ratio of wavelength =
ratio of wavelength = 0.75187
so
sin(θ)water = sin(θ)air (0.75187)
sin(θ)water = sin(0.49) (0.75187)
sin(θ)water = 0.006429
so (θ)water is
(θ)water = 0.3683°
we notice here that by using small angle formula
we have approximate sin(θ) = θ
so θ for water is =
θ for water =
θ for water = 0.3684°
Answer:
1.351 A
Explanation:
