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Light & Sound

Reflection, refraction, lenses, mirrors, sound waves and Doppler effect

Sample Practice Questions

  1. A concave lens is used to correct:

    • Hypermetropia
    • Myopia
    • Presbyopia
    • Astigmatism
    Show answer

    Answer: Myopia

  2. The phenomenon responsible for the rainbow is:

    • Reflection
    • Total internal reflection
    • Dispersion of light
    • Diffraction
    Show answer

    Answer: Dispersion of light

  3. A magnifying glass uses a _____ lens.

    • Concave
    • Plane
    • Convex
    • Bifocal
    Show answer

    Answer: Convex

  4. Which colour of light has the highest frequency?

    • Red
    • Yellow
    • Green
    • Violet
    Show answer

    Answer: Violet

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Practice Questions

Practice 20 randomly selected NTSE questions on Light & Sound. Answers are revealed after each question.

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SAT Topics