Dato Name
Reflection of Light Assignment
Instructions: Answer the following que son below Answers should show all
calculations, and or tabelled diagrams for each question All antwen should be in
sentences Use the magnification and distance equations you leared in the activity to
solve some of the questions
Questions:
1. Consider the following object in front of a plane mirror Construct a ray diagram to
show how light travels from the object (arrow) to the mirror and ultimately to the aya:
then indicate the portion of the mirror needed in order for the eye to view the image (6)
& object
2. A light ray strikes a plane mirror at an angle of incidence is 35 degrees. What would
be the angle of reflection and explain your reasoning? (2 marks)
3. Construct ray diagrams to show where the images of the following objects are
located. Draw in the complete image and describe its characteristics (real or virtual,
enlarged or reduced in size, inverted or upright). (NOTE: review the ray diagrams for all
possible objects locations for each device.) (6 marks each)
PA.
V
с
PA
V
с
f
-PA
A concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm away
on its principal axis the corresponding object is located how far from the mirror? (2
marks)

In a steady-flow steam power plant system, two adiabatic high-pressure and low-pressure turbines ane used to generate power. superheated steam enters the high-pressure turbine at 8 mpa and 550°c. the steam expands in the high-pressure turbine to a saturated vapor at 3 mpa. in order to increase the powe generation of the power plant, another steam turbine working in a lower pressure ranges is deployed. the outlet vapor from the first turbine is heated up at a boiler to the temperature of 500 c at the constant pressure of first turbine's outlet (3 mpa). then, the vapor enters the second turbine and produces extra work. the exit conditions of the second turbine are 5o kpa and 90 percent quality. if the total power output of the power plant is 25 mw, determine a) the mass flow rate of the water (kg/s). b) heat transfer rate in the boiler (mw). (30 points) 3 mpa 00 c 8 mpa s0 c high pres turbine low pres boiler turbine 50 kpa 3 mpa 09 saturated vapor t heat engine, shown in the figure, operates between high temperature and low temperature of through a heat 4. a carnot tn and tu respectively. this heat engine receives energy from a heat reservoir at t exchanger where the heat transferred is proportional to the temperature difference as ? = k (z,-7, ). it rejects heat at a given low temperature tl. to design the heat engine for maximum work output, find the high temperature, th, as a function of tes and t. (15 points) qe

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion