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Title of test:
Ray-Optics

Description:
Multiple Choice Questions

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


Creation Date:
09/05/2010

Category:
Science

Number of questions: 5
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Last comments
AVATAR
sudipta10in ( uploaded 13 years )
good test
Answer
Content:
A ray of light bends towards normal when it travels from denser to rarer because The speed of light increases The speed of light decreases The speed of light remains same None of these.
A pencil appears bent when immersed in water because of refraction of light total internal reflection dispersion of light none of these.
Which of the following is most important condition for viewing a rainbow? Sun should be between observer and water droplets in atmosphere. The observer should be between sun and water droplets in atmosphere. Water droplets should be between sun and observer. none of these.
Mirage [illusion of appearance of water in desert in hot sunny day] occurs in deserts due to: refraction of light dispersion of light interference of light total internal reflection.
Which gives both the conditions necessary for total internal reflection? Ray of light travels from rarer to denser and angle of incedense is more than critical Ray of light travels from denser to rarer and angle of incedense is less than critical Ray of light travels from denser to rarer and angle of incedense is more than critical Ray of light travels from denser to rarer and angle of incedense is less than critical.
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