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561.3. Characteristics and usage of lenses

Check the correct answer!

How does the focus distance change if grandmother’s glasses with 1,5 diopters are replaced with 1,7 diopter strong lenses?
Grade:
8
Subject
Physics
Theme
Light and colours
Subtheme
Lens characteristics and usage.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Opposite, adjacent angles, perpendiculars against a straight line.
  2. Physics: Heat process diagram.
  3. Geometry: Triangles and trapezes midline.
  4. Algebra: Square root
  5. Physics: Spread of light and shades.
  6. Physics: Mass and density.
  7. Physics: Soun
  8. Algebra: Fractions main property
  9. Algebra: Proportions, percent
  10. Chemistry: Substances multiplicity.
  11. Physics: Spread of light and shades.
  12. Algebra: Square trinomial roots
  13. Algebra: Median
  14. Chemistry: Waters chemical properties and formation.
  15. Algebra: Square root properties
  16. Algebra: Complete quadratic equation
  17. Geometry: Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.
  18. Algebra: Linear equalities and inequalities solution.
  19. Physics: Pressure.
  20. Algebra: Median
  21. Algebra: Linear equalities and inequalities solution.
  22. Chemistry: Chemical transformation signs. Chemical transformation causes and process.
  23. Physics: Interaction, strength and safety.
  24. Algebra: Formula y = k/x
  25. Algebra: Albraic fraction.
  26. Physics: Gravitation, friction and deformation.
  27. Geometry: Parallelogram, elements. Properties and signs.
  28. Geometry: Trapeze, its elements, trapeze types, trapeze properties, isosceles trapeze signs.
  29. Geometry: Right-angled triangle outlined circle lines center location.
  30. Algebra: Function y=√x
  31. Physics: Characteristics and usage of lenses
  32. Chemistry: Air composition and usage(reactions).
  33. Chemistry: Acids, bases and salts chemical formulas and names.
  34. Geometry: Squar, properties and signs.
  35. Geometry: Polygon angle sum, convex or concaved quadrangle, polygon diagonale.
  36. Chemistry: Chemical transformation signs. Chemical transformation causes and process.
  37. Algebra: Quadratic equation
  38. Algebra: Incomplete quadratic equation
  39. Algebra: Irrational numbers.
  40. Algebra: Linear equalities and inequalities solution.
  41. Physics: Spread of sound.
  42. Chemistry: Chemical transformation signs. Chemical transformation causes and process.