The diameter of moon is 3.5km and its distance from the earth is km. The focal length of the objective and eye-piece are 4 m and 10 cm respectively. The diameter of the image of the moon will be approximately |
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The diameter of moon is 3.5km and its distance from the earth is km. The focal length of the objective and eye-piece are 4 m and 10 cm respectively. The diameter of the image of the moon will be approximately |
|||||||
a) |
b) |
c) |
d) |