Question Pool Vision and Colour of Light

Vision and Colour of Light - SAMAGRA Question Pool & Answers | Class 10 English Medium

Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 10 English Medium Physics Vision and Colour of Light

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Qn 1.

Why concave lens always create virtual and erect image of the object.?



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Qn 2.

what is the value of near point distance of a healthy person

(10 cm, 50 cm, 100 cm, 25 cm)



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Qn 3.

Name the phenomenon that causes tyndall effect

(reflection, refraction, scattering, dispersion)



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Qn 4.

Scattering of light by minute particles is called ------------

( scattering, dispersion, reflection, refraction)



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Qn 5.
The defect of the eye that Far point drops from infinity to a fixed distance is called
(pressbiopia, Longsight, Shortsight)


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Qn 6.

Which among the following is the most scattered color of light ?

(red, blue, violet, green)



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Qn 7.

Name the eye defect that can be corrected with a concave lens

( Longsight, shortsight, pressbiopia)



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Qn 8.

The unit of power of a lens?

(Meter, Diopter, Watt, Newton)



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Qn 9.

The vehicle's tail lamps and signal lamps are red.

  1. Which is the longest wavelength in the spectrum of white light?
  2. How the wavelength and scattering of colors are related.
  3. Why are the signal lamps red?


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Qn 10.

International Dark Skyweek is celebrated during the week of the new moon 
in April

  1. What is the message of celebrating like this?
  2. Suggest two ways to reduce light pollution


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Qn 11.
The rainbow can be seen circular from high-flying aircraft. 
Why can't you see it from the floor?


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Qn 12.

A child sees a rainbow in the evening.

  1. In what direction would the rainbow appear?
  2. What color is the color on the outside of the rainbow?


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Qn 13.
Find the right statements related to dispersion of 
light through the prism? a) the color of light with greater wavelength is
deviated more b) the color of light with shorter wavelength is
deviated more. c) color of light with longer wavelength
is deviated less d) color of light with shorter wavelength
is deviated less


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