Which of the above optical systems (given that all surfaces are made of transparent glass and the bold surfaces represent mirrors) can be considered as lens?

I, V, IV, II

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I, II, III, V

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I, II, III, IV

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I, IV only

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Solution

The correct options are
A
I, V, IV, II

B
I, II, III, V

C
I, II, III, IV

D
I, IV only

The fifth optical system has two plane mirrors and hence it can't be considered as lens. Lens should have at least one spherical surface.

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Which of the above optical systems (given that all surfaces are made of transparent glass and the bold surfaces represent mirrors) can be considered as lens?

The correct options are A I, V, IV, II B I, II, III, V C I, II, III, IV D I, IV only The fifth optical system has two plane mirrors and hence it can't be considered as lens. Lens should have at least one spherical surface.

The correct options are
A
I, V, IV, II

B
I, II, III, V

C
I, II, III, IV

D
I, IV only

The fifth optical system has two plane mirrors and hence it can't be considered as lens. Lens should have at least one spherical surface.