Physics, 27.05.2021 17:10 sarahalexa19
Part B: Thinking (12 marks)
1. The print on a newspaper is 0.25 cm tall. A converging lens is held 2.00 cm above the newspaper so it can
be used as a magnifying glass. It produces a virtual image 3.60 cm away from the lens. Answer the
following questions based on calculations. Show all your work using proper form (GRASP), including a ray
diagram
a) Determine the focal length of the magnifying glass. [4]
I
b) Determine the height of the image. [2]
c) State the four characteristics of the image. [1]
2
Answers: 2
Physics, 22.06.2019 05:00
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
Physics, 22.06.2019 07:40
Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear
Answers: 2
Physics, 22.06.2019 13:40
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
Answers: 1
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
Part B: Thinking (12 marks)
1. The print on a newspaper is 0.25 cm tall. A converging lens is held...
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