Physics Ray Optics Level: High School
Find the rays (trace) and angles for the light traveling from air to water and from glass to water . In both cases the light is reflected by mirror placed in the source media as shown in the figure at “click here” .
Physics Ray Optics Level: High School
Red light of wavelength 600.0 nm is incident on a grating . If the separation between the slits is 5.0 x 10^-5 m, at what angle does the first principal maximum occur ? a. 0.6 x 10^-2 rad b. 0.8 x 10^-2 rad c. 1.2 x 10^-2 rad d. 3.6 x 10^-2 rad e. 5.0 x 10^-2 rad
Physics Ray Optics Level: High School
A 30.0 mm wide diffraction grating produces a deviation of 30.0 degree in the second order principal maxima . The wavelength of light is 600.0 nm . What is the total number of slits on the grating ? a. 10 000 b. 11 500 c. 12 500 d. 14 000 e. 15 000
Physics Ray Optics Level: High School
Two stars are just barely resolved by a telescope with a lens diameter of 0.500 m. Determine the angular separation of the two stars . Assume incident of light of wavelength 500.00 nm . a. 1.22 x 10^-6 rad b. 5.66 x 10^-5 rad c. 2.44 x 10^-7 rad d. 4.88 x 10^-5 rad e. 1.22 x 10^-7 rad
Physics Ray Optics Level: High School
Light of wavelength 700.0 nm passes through a diffraction grating . The m = 0 and m = 1 bright spots are 6.0 cm apart on a screen positioned 2.0 cm from the grating . What is the spacing between the slits in the grating ? a. 233 nm b. 423 nm c. 467 nm d. 738 nm e. 1240 nm
Physics Ray Optics Level: High School
A Michelson interferometer is used to measure the wavelength of light emitted from a monochromatic source. As the adjustable mirror is slowly moved through a distance DA = 0.0265 mm , an observer counts 411 alternations between bright and dark fields . What is the wavelength of the monochromatic light used in this experiment ? a. 193 nm b. 227 nm c. 258 nm d. 346 nm e. 369 nm.
Physics Ray Optics Level: High School
What is the minimum (non zero) thickness of a benzene (n = 1.501) thin film that will result in constructive interference when viewed at normal incidence and illuminated with orange light (ë vacuum = 615 nm) ? A glass slide (ng = 1.620) supports the thin film . a. 51.0 nm b. 306 nm c. 204 nm d. 102 nm e. 76.0 nm
Physics Ray Optics Level: High School
Young's Double slit experimentation
Two slits are separated by 2.00 x 10^-5 m. They are illuminated by light of wavelength 5.60 x 10^-7 m. If the distance from the slits to the screen is 6.00 m , What is the separation between the central bright fringe and the third dark fringe ? a. 0.421 m b. 0.224 m c. 0.168 m d. 0.084 m e. 0.070 m
Physics Ray Optics Level: High School
Which one of the following statements provide the most convincing evidence that visible light is a form of electromagnetic radiation ? a. Two light sources can be coherent . b. Light can be reflected from a surface . c. Light can be diffracted through an aperture . d. Light can form a double-slit interference pattern . e. Light travels through vacuum at the same speed as X-rays .Physics Ray Optics Level: High School
Two polarizing sheets have their transmission axes parallel so that the intensity of unpolarized light transmitted through both of them is a maximum . Through what angle must either sheet be rotated if the transmitted intensity is 25% of the incident intensity ? a. 15 degree. b. 30 degree. c. 45 degree. d. 60 degree. e. 75 degree.
Physics Ray Optics Level: High School
Unpolarized light of intensity So passes through two sheets of polarizing material whose transmission axes make an angle of 60 degree with each other as shown in the figure at “click here” . What is the intensity of the transmitted beam , St ? a. So/4 b. So/8 c. 3So/4 d. So/16 e. Zero
Physics Ray Optics Level: High School
Doppler Effect
An astronomer observes electromagnetic waves emitted by oxygen atom in a distant galaxy that have a frequency of 5.710 x 10^14 Hz . In the laboratory on earth , oxygen atoms emit waves that have a frequency of 5.841 x 10^14 Hz . Determine the relative velocity of the galaxy with respect to the astronomer on the earth . Note : The speed of the light is 2.9979 x 10^8 m/s .a. 6.724 x 10^6 m/s , away from earth .
b. 6.724 x 10^6 m/s , toward earth .
c. 2.931 x 10^8 m/s , away from earth .
d. 4.369 x 10^4 m/s, toward earth .
e. 4.369 x 10^4 m/s , away from earth .
Physics Ray Optics Level: High School
The average distance between the surface of the earth and the surface of the sun is 1.49 x 10^11 m. How much time , in minutes , does it takes for light leaving the surface of the sun to reach the earth ?a. Zero minutes .
b. 2.9 x 10^-3 minutes.
c. 8.3 minutes.
d. 74 minutes.
e. 500 minutes.
Physics Ray Optics Level: High School
When a radio telescope observes a region of space between two stars , it detects electromagnetic radiation that has a wavelength of 0.21 m . This radiation was emitted by hydrogen atoms in the gas and dust located in that region . What is the frequency of this radiation ?a. 7.1 x 10^10 Hz
b. 2.1 x 10^14 Hz
c. 3.0 x 10^8 Hz
d. 6.9 x 10^11 Hz
e. 1.4 x 10^9 Hz
Physics Ray Optics Level: High School
Complete the following sentence . The various colors of visible light differ ina. Frequency only.
b. Wavelength only.
c. Their speeds in a vacuum.
d. Frequency and wavelength.
e. Frequency and their speed in a vacuum.