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ERASED TEST, YOU MAY BE INTERESTED ONOptics-Multiple choice questions-BHSEC

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Title of test:
Optics-Multiple choice questions-BHSEC

Description:
Multiple choice on Optics-BHSEC

Author:
AVATAR
Sudipta Kumar Roy
(Other tests from this author)


Creation Date:
07/10/2009

Category:
Science

Number of questions: 10
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Content:
I convex lens of refractive index 1.6 is immersed in a liquid of refractive index 1.8. What would be the nature of lens? converging diverging none of these.
How would a ray of light travel from one medium to another if refractive index is same? deviate towards normal deviate away from normal travels undeviated none of these.
When white light passes through aprism, which colour deviates maximum? red violet yellow blue.
Why is optical fibre preffered over ordinary cables? it is cheap there is no loss of energy it is made up of plastic none of these.
State the principal on which optical fibre works. refraction of light total internal reflection polarisation diffraction.
Which of the following is most necessary condition for Total internal reflection? Ray of light should travel from rarer to denser medium There should be no refraction The angle of incidence should be more than critical angle Only white light should be used.
A pencil dipped in beaker of water appears bent due to total internal reflection refraction of light low refractive index of water compared to air none of these.
Refractive index of air is 1.0 1.5 2 4.
A diomand sparkles due to..... refraction of light atomic structure total internal reflection none of these.
Which is the most important condition to view a rainbow? The observer should be behind sun The observer can view rainbow from any position The observer should be between sun and water droplets in atmosphere The observer should be right below sun.
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