You have three lenses L1, L2 and L3 of powers +10D, +5D and -10D respectively. *IMPORTANT*
a. State the nature and focal length of each lens.
b. Explain which of the three lenses will form a virtual and magnified image of an object
placed at 15 cm from the lens.
c. Draw the ray diagram in support of your answer.
Answers: 3
Physics, 21.06.2019 21:40
This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?
Answers: 3
Physics, 22.06.2019 03:50
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Physics, 22.06.2019 12:30
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
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Physics, 23.06.2019 00:50
Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?
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You have three lenses L1, L2 and L3 of powers +10D, +5D and -10D respectively. *IMPORTANT*
a. Stat...
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