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Assertion:Although the surfaces of goggl...

Assertion:Although the surfaces of goggle lens are curved, It does not have any power.
Reason: In case of goggles, both the curved surfaces have equal radii of curvature and have centre of curvature on the same side.

A

Statement is True, Statement II is True, Statement II is correct explanation for Statement I

B

Statement I is True, Statement II is True, Statement II is NOT a correct explanation for Statement I.

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is True.

Text Solution

Verified by Experts

The correct Answer is:
a.
Both statements are true and Statement II is the correct explanation of Statement I.
The focal length of a lens is given by, `(1)/(f)=(mu-1) ((1)/(R_(1))-(1)/(R_(2)))`
For goggle, `R_(1)=R_(2)`
`(1)/(f)=(mu-1) ((1)/(R_(1))-(1)/(R_(2)))=0`
Therefore, power `P=(1)/(f)=0`
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