Physics-Optical Instruments
NEET Physics Optical Instruments Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
Assertion (A): A refracting telescope can be used for both terrestrial and astronomical observations. | Reason (R): The length of the telescope tube is equal to the sum of the focal lengths of the objective and the eyepiece.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option B
Detailed Explanation
The refracting telescope's versatility for terrestrial and astronomical use is due to its additional inverting lenses, not solely because of the tube length being the sum of the focal lengths.
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