Question

the working of telescope and microscopes ,colours in thin films explained in optics or mechanics or thermodynamics or electronics​

Answer 1

Answer:

A telescope is an optical instrument which is used to see distant objects as magnified image. It magnifies the distant objects with the help of lenses, mirrors, etc. The most familiar telescope is optical telescope.

Microscope is an optical instrument which is used to see small objects that cannot be seen with the human naked eye. The meaning of microscope means invisible to eye. It also uses lenses to magnify objects. Visible light microscope or light microscope is the main used microscope.

Telescopes work with the help of curved mirrors to focus light from the night sky. The gathering of light depends on the size of mirror and lenses used in it. The bigger the mirror or lenses, the more light is gathered. The gathered light is concentrated in the shape of optics. Long focal lengths are produced by its lenses.

In microscope, the eye piece lens magnifies image from objective lens. Eye piece can be moved with the help of turning wheel in it. In light microscope, the light from the mirror is reflected through the specimen. The image is produced from the objective lens. It can be magnified with the help of eye piece lens.

Different regions of film appear in different colors according to the thickness of films. Thin film interference occurs when light reflects multiple times. The colors are due to interference between light waves reflected from the top and the bottom surfaces of thin films. When light is incident on a thin film, the film appears colored.

Explanation: