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(a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1. (b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1. (c) Statement-1 is True, Statement-2 is False. (d) Statement-1 is False, Statement-2 is True. Statement-1: Parallex method cannot be used for measuring distances of stars more than 100 light years away. Statement-2: Because parallex angle reduces so much that it cannot be measured accurately.



(a)    Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.


(b)    Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.


(c)    Statement-1 is True, Statement-2 is False.


(d)    Statement-1 is False, Statement-2 is True.


 




Statement-1: Parallex method cannot be used for measuring distances of stars more than 100 light years away.


          Statement-2: Because parallex angle reduces so much that it cannot be measured accurately.



 

Grade:upto college level

1 Answers

Radhika Batra
247 Points
8 years ago

(a)

 

As the distance of star increases, the parallex angle decreases, and great degree of accuracy is required for its measurement. Keeping in view the practical limitation in measuring the parallex angle, the maximum limitation in measuring the parallex angle, the maximum distance of a star we can measure is limited to 100 light year.

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