Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave r
1 answer:
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Answer:
2.52 × 10⁻² cm
Explanation:
The distance of bright fringe from the center of the screen is given by the formula
Here, wavelength is λ, Distance of the screen from the slits is D, seperation between the
slits is d.
Separation between the slits, d = 0.15 mm
Distance of the screen from the slits = 1.40 m
We have a wavelength, λ1 = 540 nm
=
By substituting all these values in the above equation we get
y1 = mλD/d
We have a wavelength, λ2 = 450 nm
=
By substituting all these values in the above equation we get
According to the problem, these two distance are coincides with each other.
So,
by testing values, the above equation is satisfied only when, m = 5 and m' = 6
Then from the above we have
y1 = y2 = 0.0252 m
= 2.52 × 10⁻² cm
Answer:
v = 0.375 m/s
Explanation:
Given that,
The wavelength of a wave is 0.75 m/cycle
The period of a wave is 2s/cycle
We need to find the speed of the wave. We know that,
Substitute all the values,
So, the speed of the wave is equal to 0.375 m/s.