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The holograms found on credit-cards are an example of ________

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The holograms found on credit-cards are an example of ________

(a) Volume Holograms

(b) Rainbow Holograms

(c) Reflection Hologram

(d) Hybrid hologram

This question was posed to me during an online interview.

My doubt is from HoloGraphy topic in chapter Optics of Engineering Physics II

1 Answer

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Right choice is (b) Rainbow Holograms

To explain I would say: Rainbow Hologram begins with a standard transmission hologram. These types of holograms are found on credit cards. They are designed to be viewed under white light illumination.

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