1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
A circuit has a resistance of $$12$$ $$ohm$$ and an impedance of $$15$$ $$ohm$$. The power factor of the circuit will be
A
$$0.4$$
B
$$0.8$$
C
$$0.125$$
D
$$1.25$$
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The phase difference between the alternating current and $$emf$$ is $${\pi \over 2}.$$ Which of the following cannot be the constituent of the circuit?
A
$$R,L$$
B
$$C$$ alone
C
$$L$$ alone
D
$$L, C$$
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Two point white dots are $$1$$ $$mm$$ apart on a black paper. They are viewed by eye of pupil diameter $$3$$ $$mm.$$ Approximately, what is the maximum distance at which these dots can be resolved by the eye? [ Take wavelength of light $$=500$$ $$nm$$ ]
A
$$1m$$
B
$$5m$$
C
$$3m$$
D
$$6m$$
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is
A
circle
B
hyperbola
C
parabola
D
straight line
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