How do refracting telescopes magnify a far away image?
A.
by forcing light beams to change direction
B.
by directing light beams to meet at a focal point
C.
by measuring light beams’ velocity
D.
by absorbing light beams’ wavelengths
A.
by forcing light beams to change direction
B.
by directing light beams to meet at a focal point
C.
by measuring light beams’ velocity
D.
by absorbing light beams’ wavelengths