Answer:
1. The best definition of refraction is ____.
a. passing through a boundary
b. bouncing off a boundary
c. changing speed at a boundary
d. changing direction when crossing a boundary
Answer: D
Bouncing off a boundary (choice b) is reflection. Refraction involves passing through a boundary (choice a) and changing speed (choice c); however, a light ray can exhibit both of these behaviors without undergoing refraction (for instance, if it approaches the boundary along the normal). Refraction of light must involve a change in direction; the path must be altered at the boundary.
Answer:
Magnetic field strength required for this is 0.25 T
Explanation:
As we know that the proton moves in circular path in uniform magnetic field
so the radius of the path of the circle is given as
here we know that
now we have
so we have
Answer: Salt
Explanation: Alkenes, esters, and salts are all functional groups either containing or being functional groups.
Answer:
They are known as isotopes
Answer:
Explanation:
First of all, we need to find the initial wavelength of the photon.
We know that its energy is
So its wavelength is given by:
The formula for the Compton scattering is:
where
is the original wavelength
h is the Planck constant
m is the electron mass
c is the speed of light
is the angle of the scattered photon
Substituting, we find
