Answer:
C. 0.2 Hertz
Explanation:
The frequency of a spring is equal to the reciprocal of the period:
where
f is the frequency
T is the period
For the spring in this problem,
T = 5 s
therefore, the frequency is
It's refraction....When light bends on passing from one medium to another is refraction !
Answer:
Light microscopes use light and glass objectives to illuminate and magnify objects
Explanation:
Light microscopes and electron microscopes are used to study cells. The electron microscope has many times more resolving power than the ordinary light microscope. A light microscope contains an objective lens and an eyepiece through which the final image is seen.
Both light and electron microscopes magnifies the image of the object. The magnifying power of an electron microscope is many times that of the light microscope.
