Thursday, April 11, 2013

A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is:


Q-1;  A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is:
1) 2 x 10-2 farads
2) 5 x 10-2 farads
3) 2 farads
4) 5 farads
ANSWER: X -- 5 x 10-2 FARADS
Q-2; Two light rays will interfere constructively with maximum amplitude if the path difference between them is:
1) one wavelength
2) one-half wavelength
3) one-quarter wavelength
4) one-eighth wavelength
ANSWER: 1 -- ONE WAVELENGTH
Q-3;Light is normally incident on a thin soap film and is reflected. If the wavelength of this light is "L" and the index of refraction of the soap film is "N", complete destructive interference will occur for a film thickness of:
1) L / 8N
2) L / 4N
3) L / 2N
4) 3L / 4N
ANSWER: 3 -- L / 2N
Q-1; The Michelson interferometer was designed to study the nature of:
1) water waves
2) sound waves
3) an "ether"
4) sunlight
ANSWER: 3 -- AN "ETHER

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