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A 3*5 card containing two pinholes, 0.08mm in diamter andseparated center to center by 0.10mm, is illuminated by parallelrays of blue light from an argon ion laser (wavelength= 487.99 nm).If the fringes on an observing screen are to be 10mm apart, how far away should the screen be?
Light traveling in air enters a material at an angle of 25 degrees with respect to the normal. The refracted beam in the material makes an angle of 18 degrees with respect to the normal. Calculate the index of refraction of the material.
You are trying to overhear a juicy conversation, but from your distance of 19.0 , it sounds like only an average whisper of 30.0. How close should you come
Light of wavelength 0.533 µm (in air) enters the water in a swimming pool. What is the wavelength of the light in water
A long uniform rod of length 1.00 m and mass 6.00 kg is pivoted about a horizontal, frictionless pin through one end. Find the components of the reaction force at the pivot
The drive propeller of a ship starts from rest and accelerates at 2.69 x 10-3 rad/s2 for 2.80 x 103 s. Find the total angular displacement of the propeller
The speed of a bullet as it travels down the barrel of a gunis given by v=-50000t2-300t where v is in km/s and t inseconds The acceleration of the bullet as it leaves the gun is zero.
An ideal polarizer with its transmission axis rotated 30.5 to the vertical is placed in a beam of unpolarized light of intensity 10 W/m ^2. After passing through the polarizer, what is the intensity of the beam
The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 950 ohm resistor in series with the deflection plates.
A 100-? resistor, an inductor and a 3.0-µF capacitor are connected in series with a time varying emf of 10.0 V and frequency 1000 Hz. What is the inductance of the inductor
If the translation rms speed of the water vapor molecules in air is 703 m/s, what is the translational rms speed of the carbon dioxide molecules in the same air? Both gases are at the same temperature.
A plane flies from base camp to Lake A, 300 km away in the direction 36.9° south of east. After dropping off supplies it flies to Lake B, which is 260km at 30.0° west of north from Lake A. find out the distance and direction from Lake B to the bas..
In a fluorescent tube of diameter 3 cm, 3 times 1018 electrons and 0.75 times 1018 positive ions (with a charge of +e) flow through a cross-sectional area each second
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