Advertisements
Advertisements
प्रश्न
What is the use of an erecting lens in a terrestrial telescope?
उत्तर
A terrestrial telescope has an additional erecting lens to make the final image erect.
APPEARS IN
संबंधित प्रश्न
Answer the following question in detail.
Define and describe the magnifying power of an optical instrument.
Answer the following question in detail.
Obtain the expressions for magnifying power and the length of an astronomical telescope under normal adjustments.
Discuss about simple microscope and obtain the equations for magnification for near point focusing and normal focusing.
What is the near point focusing?
What are the advantages and disadvantages of using a reflecting telescope?
What is the remedy of myopia?
What is astigmatism? What is its remedy?
Obtain the equation for resolving the power of the microscope.
Discuss about astronomical telescope.
Explain the preliminary adjustments of the spectrometer.
A compound microscope has a magnifying power of 100 when the image is formed at infinity. The objective has a focal length of 0.5 cm and the tube length is 6.5 cm. What is the focal length of the eyepiece.
The magnifying power of a telescope is high if its objective and eyepiece have respectively ______.
An observer looks at a distant tree of height 10 m with a telescope of magnifying power of 20. To the observer the tree appears:
In the adjoining figure, AB represents the incident ray, and BK is the reflected ray. If angle BCF = θ, then ∠BFP is given by ______.
