Physics Ray Optics Level: High School
Lenses
Find the image position and magnification when an object is placed .a) 30 cm from a converging lens of focal length 20 cm .
b) 10 cm from a diverging lens of focal length 15 cm .
Are the image real or virtual , erect or inverted ?Physics Ray Optics Level: High School
Refraction through a prism
A glass prism of refractive index 1.5 has a refracting angle of 45 degree , Calculate the angle of minimum deviation and the angle of incidence for which this occurs .Physics Ray Optics Level: High School
Refraction
The light beam shown in the figure at “click here” makes an angle of 20 degree with the normal line NN’ determine the angle theta and theta .Physics Ray Optics Level: High School
Refraction
A fish in a pond is 3 cm below the surface .a) What is the apparent depth of the fish for a fisherman in a boat directly above ?
b) What is the apparent depth for the fisherman that makes an angle of theta = 20 degree with the normal , when looking at where the fish appears to be . Assume that the image is above the fish (as seen in the figure at “click here”) (n water = 1.33 , n air = 1)
Physics Ray Optics Level: High School
Lenses
Two lenses are made from fused quartz , n = 1.46 . The first lens is a double convex lens with the magnitude of the focal length equal to 52 cm . The second lens is a double concave with the magnitude of the focal length equal to 23 cm . The converging lens is placed 15 cm to the left to the diverging lens . A real object is placed 45 cm to the left of the converging lens .a) Calculate the radius of the curvature of the surface of the converging lens .
b) Calculate the position of the final image with respect to the diverging lens .
c) Calculate the final (total) magnification .
d) Is the final image real or virtual ? Inverted or the same orientation as the object ?
Physics Ray Optics Level: High School
Relativity
C) An electron (m = 9.1 e -31 kg ) has a speed of .95c . Its kinetic energy is ?
Physics Ray Optics Level: High School
Convex Lens
A) In a cinema , a picture 2.5 cm wide on the film is projected to an image -++3.0 m wide on a screen which is 18 m away . What is the focal length of the lens ?
Physics Ray Optics Level: High School
Interference
B) In a double-slit experiment , light of wavelength 500 nm illuminates two slits that are separated by 1 mm . The separation between adjacent fright fringes (close to the center) on a screen 5 m from the slits is what distance ?
Physics Ray Optics Level: High School
Convex Mirror
At an intersection of hospital hallways , a convex mirror is mounted high on a wall to help people avoid collisions . The mirror has a radius of curvature of 0.559 m . Locate the image of a patient from 29.7 m the mirror . Answer in units of m .a) Find the magnification .
b) Describe the image ,
1) real , inverted , smaller
2) virtual , inverted , smaller
3) virtual, upright , smaller
4) virtual , upright , larger
5) None of the these
6) real, upright , larger
7) virtual, inverted, larger
8) real, upright, smaller
9) real , inverted, larger
Physics Ray Optics Level: High School
Concave Mirror
A concave mirror has a radius of curvature of 1.61 m . Calculate the position of the image produced when an object is placed 2.35 m from the mirror . Answer in units of m .a) Calculate the piston of the image when an object is placed 0.478 from the mirror . Answer in units of m .
Physics Ray Optics Level: High School
What causes refraction ?1) the existence of different colors of light .
2) none of the above
3) the difference in the speed of light in different transparent media
4) the speed of light being higher than c in some media .
5) reflection
Physics Ray Optics Level: High School
Refraction
The wavelength of red light in air is 530 nm . What is its frequency ? Answer in units of Hz .a) What is its wavelength in glass that has an index of refraction of 1.5 ? Answer in units of nm .
b) What is its speed in the glass ? Answer in units of m/s .
Physics Ray Optics Level: High School
Refraction
When red passes from air into water . the frequency of the light remains the same . What happens to the speed and the wavelength of the light as it crosses the boundary in going from air into water ?Physics Ray Optics Level: High School
Speed of Light
The index of refraction of crown glass for violet light is 1.535 , while for red light it is 1.509 . What is the speed of violet light in crown glass ? Answer in units of m/s .What is the speed of the red light in crown glass ? Answer in units of m/s .
Physics Ray Optics Level: High School
Convex Mirror
A converging lens of focal length 0.186 m forms a virtual image of an object . The image appears to be 0.947 m from the lens on the same side as the object . What is the distance between the object and the lens ? Answer in units of m .