Advertisements
Advertisements
प्रश्न
State Snell’s law.
उत्तर
The ratio of the sine of the angle of incidence and sine of the angle of refraction is equal to the ratio of refractive indices of the two media. This law is also known as Snell’s law.
`"sin i"/"sin r"` = `μ_2/μ_1`
APPEARS IN
संबंधित प्रश्न
Explain the construction of Galileo’s telescope.
Study the figure and answer the following questions.
- What type of telescope is shown in the figure?
- Label the main parts of the telescope.
- Which type of mirror does the telescope use?
- What other type of telescope uses a curved mirror?
- Explain the working of the above telescope.
Which type of telescope can be made using a concave mirror, convex mirror, plane mirror and a lens? Draw diagrams of these telescopes.
Telescope was invented by______.
True or False – If False give the correct answer
Galilio accepted the Geo-centric model.
Myopia is due to ______.
The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 Å is of the order of ______.
A telescope of objective lens diameter 2 m uses light of wavelength 5000 Å for viewing stars. The minimum angular separation between two stars whose image is just resolved by their telescope is ______.
