A telescope of aperture diameter 5m is used to observe the moon from the earth. Distance between the moon and earth is 4 10^5 km. Determine the minimum distance between two points on the moon's surfa…

Question

A telescope of aperture diameter 5m is used to observe the moon from the earth. Distance between the moon and earth is 4 10^5 km. Determine the minimum distance between two points on the moon's surface which can be resolved using this telescope. (Wave length of light is 5893 ).

Accepted Answer

Correct answer: A. (a)JEE Main 2020 =1.22 a Distance =O_1O_2= dθ =1.22 ad Distance =O_1O_2= 1.22 5893 10^-10 4 10^85 ≈57.5m ∴ answer from options =60m (minimum distance)

$A telescope of aperture diameter 5 m is used to observe the moon from the earth. Distance between the moon and earth is 4 \times 10^{5} km . Determine the minimum distance between two points on the moon's surface which can be resolved using this telescope. (Wave length of light is 5893 A ˚).$

Solution

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