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Parallel light of wavelength 656 nm is incident normally on a slit of width 0.04 mm.
(a) Calculate the angle of diffraction of the first minimum.
(b) A lens with a focal length of 500 mm is located behind the slit bringing the diffraction pattern to a focus on a white screen.
Calculate the full width on the screen of the central maximum of the diffraction pattern.
A diverging lens has a focal length of 71.5 cm. A real object is placed 30.9 cm in front of the lens. How far is the image located from the lens
One cubic centimeter of a cumulus contains 330 water drops, which have a typical radius of 10 ?m. How much mass does the water in the cloud have
The speed of sound does not depend on the loudness or the frequency of sound. Explain how temperature and humidity affect the speed of sound
Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 18.4 percent of the intensity of the light incident on the first sheet. Find out the angle between the transmissions axe..
A simple Atwood’s machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 8.4 m/s at the end of 7.2 s. At that time, the kinetic energy of the system is 62 J and each mass has moved a distance of 30..
A race car starts from rest on a circular track of radius 375 m. The car's speed increases at the constant rate of 0.727 m/s^2 , Find the elapsed time at the same moment
Find out the sum of these four vector forces: 12N to the right at 35.0° above the horizontal, 31.0 N to the left at 51.5° above the horizontal, 7.45N to the left at 35.0° below the horizontal, and 24N to the right at 48.0° below the horizontal.
The classroom has a volume of about 100 m3. The pressure is atmospheric and the temperature is 75 ºF. What is the rms speed of the oxygen molecules
In 1919, Rutherford was able to show a breakdown in hisscattering formula for 7.7 MeV, Estimate the radius of the aluminum nucleus
a 1-cm-thick layer of water stands on a horizontal slab of glass. a light ray in the air is incident on the water 55
A 50.0-kg student climbs a 5.00-m-long rope and atops at the top. How much work does she do
Three forces are applied to a tree sapling, to stabilize it. If F1= 282 N and F2= 355 N, find F3 in magnitude and direction. The angle between F1 and F2 is equivalent to 110 degrees.
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