NTA Abhyas JEE Main2020PhysicsWave OpticsPractice
The limit of resolution of a 100 cm telescope for λ = 5000 Å is equal to
Options
- A61 × 10 - 8   rad
- B6.1 × 10 - 8   rad
- C12.2 × 10 - 8   rad
- D122 × 10 - 8   rad
Correct answer
A. 61 × 10 - 8   rad
Step-by-step solution
d θ = 1.22 λ d = 1.22 × 5 × 10 - 7 1 = 61 × 10 - 8 rad