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.Management Sciences
Category: Physics Mcqs
The effective way to increase the sensitivity of a moving coil galvanometer is to___________________?
A. use a very long and fine suspension
B. use a coil of very large area
C. use a coil with very large number of turns
D. use a very strong magnetic field
The sharpness of resonance is__________________?
A. Directly proportional to the damping force
B. Inversely proportional to the damping force
C. Equal to the square of damping force
D. Equal to the square of damping force
A vector can be multiplied by a number. The number may be_______________?
A. Dimensionless
B. Dimensional scalar
C. Negative
D. All A, B and C are correct
Which one is not correct for a vector A= 2i+2j+3k ?
A. Has direction 45° with an x-axis
B. Has magnitude 2
C. Has magnitude 2 and direction °=45° with a y-axis
D. Has magnitude -2
The radius of geostationary orbit from the centre of the earth is nearly______________?
A. 42000km
B. 36000km
C. 24000 km
D. 18000 km
In an interference pattern______________________?
A. bright fringes are wider than dark fringes
B. dark fringes are wider than bright fringe
C. both dark and bright fringes are of equal width
D. central fringes are brighter than the outer fringes
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