4.Which of these does not have a lens?
a .Eye
b.Telescope
c.Spectacles
d.Prism
Answers
Answer:
hloo✔
prism is noT a lens.
be ☺
Answer:
Prisms vary from lenses in that they display dispersion, whereas lenses as in the eye, telescopes, and glasses show refraction. therefore D is the correct answer
Explanation:
The prism creates light ray dispersion, which means it separates white light into the seven fundamental colours of the VIBGYOR spectrum range. The lens (both divergent and converging) induces the refraction of light rays that strike one of its surfaces.
- Light dispersion is the splitting of a white light beam into its seven constituent colours as it passes through a transparent material such as a prism. The refractive index of a substance changes with light wavelength.
- The bending of light as it travels through one transparent medium into another is known as refraction. This bending caused by refraction is seen in the lens
prism don't have lens as it shows dispersion while others show rlens which is in eye,telescope, spectacles show refraction
Explanation:
The prism causes dispersion of the light rays which means it divides the white light into seven basic colours of VIBGYOR spectrum range. The lens (both diverging and converging) causes refraction of the light rays which falls upon one surface of the lens.
The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium such as a prism. The refractive index of materials varies with the wavelength (and frequency) of light.
Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses