Question

A pair of stars of actual separation one minute of arc is observed with an astronomical telescope of magnifying power 100.What will be the separation of the image of the pair in degree?​

Answer 1

The the separation of the image of the pair is 1.67°.

Explanation:

Given that,

Actual separation = 1 min

Magnifying power = 100

We need to calculate the separation of the image of the pair

Using formula of angle

$\text{Angle of separation}=m\times\text{actual separation}$

Put the value into the formula

$\text{Angle of separation}=100\times1'$

$\text{Angle of separation}=100'\times0.016667$

$\text{Angle of separation}=1.67^{\circ}$

Hence, The the separation of the image of the pair is 1.67°.

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Topic : separation of the image

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