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57.1. Lens characteristics and usage.

Check the correct answer:

How does focuss distance changes, if lens optical strength increases 2 times?
Grade:
8
Subject
Physics
Theme
Light and colours
Subtheme
Lens characteristics and usage.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Relative frequency
  2. Algebra: Periodical decimal fractions.
  3. Chemistry: Constancy of substance composition. Chemical formulas.
  4. Algebra: Fraction multiplication and division.
  5. Algebra: Complete quadratic equation
  6. Algebra: Formula y = k/x
  7. Algebra: Complete quadratic equation
  8. Algebra: Fraction amplification and abbreviation.
  9. Physics: Physical phenomena and processes.
  10. Algebra: Average arithmetical