How will you decide whether a given piece of glass is a convex lens,concave lens,or a plane glass plate?

  • A
    By observing the image of printed matter through the glass.
  • B
    By measuring the thickness of the glass.
  • C
    By checking the weight of the glass.
  • D
    By checking the color of the glass.

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Similar Questions

Does the magnification equation change depending on whether the lens is a concave lens or a convex lens?

Find the position,nature,and size of the image of an object $3 \, cm$ high placed at a distance of $9 \, cm$ from a concave mirror of focal length $18 \, cm$.

What is the velocity of light in a glass slab of refractive index $1.5$?

An object is placed $50\, cm$ from a lens that produces a virtual image at a distance of $10\, cm$ in front of the lens. Calculate the focal length of the lens. (in $, cm$)

Define power of a lens. What is its unit? One student uses a lens of focal length $50\, cm$ and another of $-50\, cm$. What is the nature of the lens and its power used by each of them?

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