Chapter 4: Dispersion of Light - Science Mcqs for Grade 7

Q.  White light is a mixture of

a. seven colors
b. nine colors
c. fourteen colors
d. fifteen colors


ANSWER: See Answer
 
No explanation is available for this question!
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MCQs:  A red "filter"
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MCQs:  As the light moves from one medium to another, its
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MCQs:  An example of 'refraction' of light is
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MCQs:  To form other colors like brown, peach, purple etc. the colors that are required, are
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MCQs:  For refraction of light, the angle of incidence must be
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MCQs:  Tiny rain droplets act like a
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MCQs:  The critical angle for water is
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MCQs:  The refractive index of soda-lime glass is
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MCQs:  The colors on the disk are mixed
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MCQs:  'Rainbows' can only be seen when the sun
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MCQs:  The critical angle for diamond is
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MCQs:  When a beam of white light is refracted, it spreads into
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MCQs:  A 'green filter' would
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MCQs:  We see yellow color on the screen because
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MCQs:  'Prisms' with total internal reflection are used in
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MCQs:  The waves at the bottom of spectrum are
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MCQs:  Unlike sound, light depends on
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MCQs:  The objects that do not produce their own light are known as
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MCQs:  The speed of light in soda-lime glass is
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MCQs:  When red and green colors are mixed together, they form
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