Use the mirors and lenses lab to answer the question below Fill in the data tabl

Question

Use the mirors and lenses lab to answer the question below Fill in the data table with the properties of the image formed in each given experimental set up. Mor Focal Object Object Image Type Image or Lens Length (cm) Yo convex 5 htO reduced 25 O realO upright IO virtual llo inverted 1110 same size O enlarged You concave-10 10 O real 110 upright O virtualO inverted virtual inverted enlarged ? eTe plane 20 O reduced O real O virtual upright O Help O invertedO same size O enlarged Web concave 10 eal upright reduced O virtual invertedO same siaze O enlarged O Previous Give Up & View

Explanation / Answer

1) convex lens a) real b) inverted c) reduced

2) concave lens a) virtual b) upright d) reduced

3) plane mirror a) virtual b) upright c) same size

4) concave mirror a) virtual b) upright c) larger in size

1) use,

1/v = 1/f - 1/u

1/v = 1/5 - 1/25

v = 6.25 cm

magnification, m = -v/u = -6.25/25 = -0.25

2)

use,

1/v = 1/f - 1/u

1/v = 1/(-10) - 1/10

v = -5 cm

magnification, m = -v/u = -(-5)/10 = + 0.5

3)

use,

1/v = 1/f - 1/u

1/v = 1/infinite - 1/20

v = -20

magnification, m = -v/u = -(-20)/20 = + 1

4)

use,

1/v = 1/f - 1/u

1/v = 1/10 - 1/5

v = -10

magnification, m = -v/u = -(-10)/5 = + 2

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