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Which of the following lenses would you prefer to use while reading small letters found in a dictionary? - Science

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Question

Which of the following lenses would you prefer to use while reading small letters found in a dictionary?

Options
  • A convex lens of focal length 50 cm

  • A concave lens of focal length 50 cm

  • A convex lens of focal length 5 cm

  • A concave lens of focal length 5 cm

Solution

A convex lens of focal length 5 cm

A convex lens gives a magnified image of an object when it is placed between the radius of curvature and focal length. Also, magnification is more for convex lenses having shorter focal length. Therefore, for reading small letters, a convex lens of focal length 5 cm should be used.

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APPEARS IN

 NCERT Solution for Class 10 Science Textbook (2019 (Latest))
Chapter 10: Light – Reflection and Refraction
Q: 6 | Page no. 186
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Video TutorialsVIEW ALL [1]

Solution Which of the following lenses would you prefer to use while reading small letters found in a dictionary? Concept: Refraction of Light - Image Formation by Lenses - Convex Lens.
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