Statement I: Although the surfaces of gogggle lengses are curved, it does not have any power.
Statement II: In case of goggle, both the curved surfaces have equal radii of curvature and have center of curvature on the same side.

Options

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.

Answer

a.

Explanation

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`