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Optics
this is geometrical optic question
A real object is in water 133cm from -3D water-plastic interface. The refractive indices of the water and
plastic are 1.33 and 1.44, respectively. The plastic is 14.44 cm thick and followed by a 4.02 cm thick
slab of ice (n=1.34). The ice is followed by 13.5 cm of glass (=1.5). The back surface of glass is a +10D
glass-air interface. The plastic-ice and ice-glass interfaces are plane surfaces. Where is the final image
and What is the lateral magnification? Find the neutralizing and back vertex powers of a system
A real object is in water 133cm from -3D water-plastic interface. The refractive indices of the water and
plastic are 1.33 and 1.44, respectively. The plastic is 14.44 cm thick and followed by a 4.02 cm thick
slab of ice (n=1.34). The ice is followed by 13.5 cm of glass (=1.5). The back surface of glass is a +10D
glass-air interface. The plastic-ice and ice-glass interfaces are plane surfaces. Where is the final image
and What is the lateral magnification? Find the neutralizing and back vertex powers of a system
Optics
what is the relation between meterial like (glass) and the refractive index ??
Optics
1. the index of refraction of a certain type of glass is 1.58 wht is the speed of of light in the glass ?
Optics
Answer the following questions.
1. A convex mirror has a focal length of --0.90 m. An object with a height of of 0.40 m is 2.5 m from the mirror.
A) Calculate the image distance
B) Calculate the image height
2. A convex security mirror in a warehouse has a focal length of -0.50 m. A forklift, which is 2.2 m tall, is 6.0 m from the mirror.
A) Calculate the image distance
B) Calculate the image height
3. A convex security mirror has a focal length of -0.25 m. A person with a height of 1.5 m is 4.0 m away from the car.
A) Calculate the image distance
B) Calculate the image hieght
1. A convex mirror has a focal length of --0.90 m. An object with a height of of 0.40 m is 2.5 m from the mirror.
A) Calculate the image distance
B) Calculate the image height
2. A convex security mirror in a warehouse has a focal length of -0.50 m. A forklift, which is 2.2 m tall, is 6.0 m from the mirror.
A) Calculate the image distance
B) Calculate the image height
3. A convex security mirror has a focal length of -0.25 m. A person with a height of 1.5 m is 4.0 m away from the car.
A) Calculate the image distance
B) Calculate the image hieght
Optics
Light of wavelength 470 nm is shone at a thin film of polymer embedded with cadmium selenide nanoparticles. The refractive index of the film is 4.2 and is surrounded on both sides by air. Find the minimum thickness of the film that will produce constructive interference as a function of the angle of incidence. Find the minimum thickness of the film that will produce destructive interference as a function of the angle of incidence. Sketch a plot of the above two functions.
Optics
In a Young's double slit experiment a laser of wavelength 600 nm is used to obtain a pattern with a distance between the center bright fringe and the first bright fring of 0.5 mm. A thin plate of glass (thickness of 100 micrometers and refractive index of 1.5) is then placed over one of the slits. What is the lateral displacement of the central fringe on the screen?
Optics
An object is placed 4 cm in front of a convex lens of focal length 3 cm. Using the lens equation, find where the image will form and state whether it is a real or virtual image.
Optics
Determine the positive peak load voltage if
Vpk = 20V
Rs = 1 K Ohm
RL = 9.1 K Ohm
Vpk = 20V
Rs = 1 K Ohm
RL = 9.1 K Ohm
Optics
A bridge rectifier with a 1.2 kΩ load is driven by a 48 Vac transformer. Draw the schematic diagram for the circuit, and calculate the dc load voltage and current values. Also determine the PIV for each diode in the circuit.
Optics
in a particular grating, the sodium doublet is viewed in third order at 10.2 degree to the normal and is barely resolved . find (a)the ruling spacing and (b) the total width of grating . given R=982.
