Answer:
i would be that annoying child lol
Explanation:
but i just needed this for points sorry :>
Concave mirror...as it focus the light at a given point..... concave mirror is converging !!!
Answer:
B) Electrons and protons
Explanation:
Each proton has a positive charge, and each electron has a negative charge. If the atom is electrically neutral, there must be the same number of electrons and protons.
A) and C) are wrong. Neutrons have no charge, so they can't counteract that of the protons or the electrons.
D) is wrong. The atomic number is the number of protons, and the mass number is the number of protons plus neutrons. The neutrons can't counteract the charge of the protons,
Coronal Mass ejections or Solar ejections are activities on the surface of the sun termed to the reaction of the gas composition of the sun's surface attributing to explosion of these gases. One example most commonly known as Solar Flares, and another example is termed as erupting prominence.
Answer:
0.541 nm
Explanation:
The condition for maxima is,
Here, m=0,1,2,.....
And d is the slit separation, m is the order of maxima, 
is the wavelength.
Given that, the 17.3 eV electron posses a wavelength of
And the order of maxima is 
.
And the angle at which first order maxima occur is, 
.
Put these values in maxima condition while solving for d.
Therefore, the slit separation is 0.541 nm.
