Home
Class 12
PHYSICS
Assume that light of wavelength 6000 Å i...

Assume that light of wavelength 6000 Å is coming from a star. What is the limit of resolution of a telescope whose objective has a diameter of 100 inch ?

Text Solution

Verified by Experts

A 100 inch telescope implies that 2a=100inch=254cm. Thus if, `lambda=6000 Å=6xx10^(-5)cm`
then, `Deltatheta=(0.61xx6xx10^(-5))/(127)`
`=2.9xx10^(-7)"radians"`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Additional Exercises|18 Videos
  • TELANGANA MARCH-2019

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise SECTION -B|5 Videos
  • WAVES

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise ADDITIONAL EXERCISES|6 Videos

Similar Questions

Explore conceptually related problems

The limit of resolution of a telescope is 2.5xx10^(-7) rad. If the telescope is used to detect light of wavelength 500 nm coming from a star, the diameter of the objective lens used by telescope is

With the help of telescope that has an objective of diameter 200 cm. it is proved that ligh of wavelengths of the order of 6400 Å coming from a star can be easily resolved. Then, the limit of resolution is

(a) A giant refracting telescope at an observatory has an objective lens of focal length 15m. If an eyepiece of focal length 1.0cm is used, what is the angular magnification of the telescope? (b) If this telescope is used to view the moon, what is the diameter of the image of the moon formed by the objective lens? The diameter of the moon is 3.48 xx 10^(6)m , and the radius of lunar orbit is 3.8xx10^(8)m .