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ABO OPTICAL EXAM Questions and Verified Rationalized Answers 100% Pass

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ABO OPTICAL EXAM Questions and Verified Rationalized Answers 100% Pass Light falling on the front surface of a spectacle lens is: A) partially reflected, partially absorbed and the remainder refracted B) partially reflected and the remainder refracted C) partially absorbed and the remainder r...

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  • November 12, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ABO
  • ABO
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JOSHCLAY
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
ABO OPTICAL EXAM Questions and

Verified Rationalized Answers 100%

Pass


Light falling on the front surface of a spectacle lens is:

A) partially reflected, partially absorbed and the remainder refracted

B) partially reflected and the remainder refracted

C) partially absorbed and the remainder refracted

D) totally refracted - ✔✔A) partially reflected, partially absorbed and the

remainder refracted

Concave mirror:

A) can focus parallel incident rays to form a real image

B) can focus parallel incident Rays to form a virtual image

C) always produce inverted images of real objects

D) produces virtual images smaller than the real object. - ✔✔A) can focus

parallel incident rays to form a real image

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Reflection is reduced by depositing a layer of magnesium fluoride on the

lens surface. It has a thickness of:

A) 1/2 the wave length of white light

B) 1/4 the wave length of white light

C) 1/2 the wave length of blue-violet light

D) the wave length of yellow light - ✔✔D) the wave length of yellow light

White light is broken into its components colors when it is:

A) diffracted

B) refracted

C) reflected

D) diffracted or refracted - ✔✔D) diffracted or refracted

Anti reflective coating of a lens is based on the principle of:

A) diffraction

B) reflection

C) interference

D) reflection and interference - ✔✔D) reflection and interference

To the viewer the image seen in a plane mirror appears to be:

A) inverted

B) 1/2 as large as the object

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