Answer:
They are equal
Explanation:
angle of incidence = angle of reflection
I think it would be d because the spring or whatever was pushing until it reached the farthest it could then it would pull down but idrk
Answer:
The value of the angle is
.
Explanation:
Given:
The condition for diffraction minima is

where,
is the slit-width,
is the angle of incidence,
is the order number and
is the wavelength of the light.
The wavelength of an electron traveling through a medium is governed by de Broglie's hypothesis.
According to de Broglie's hypothesis

Here,
is Planck's constant,
is the mass of the electron and
is the velocity of the electron.
For first minimum
.
From equation (1), we have
![&& a \sin \theta = \dfrac{h}{m_{e}v}\\&or,& \theta = \sin^{-1}[\dfrac{h}{am_{e}v}]](https://tex.z-dn.net/?f=%26%26%20a%20%5Csin%20%5Ctheta%20%3D%20%5Cdfrac%7Bh%7D%7Bm_%7Be%7Dv%7D%5C%5C%26or%2C%26%20%5Ctheta%20%3D%20%5Csin%5E%7B-1%7D%5B%5Cdfrac%7Bh%7D%7Bam_%7Be%7Dv%7D%5D)