Physics
A fountain pen works on the principle of
Flow of liquids from higher to lower potential
Capillary action
Bernoulli’s principle
Viscosity of liquids
Capillary action
A fountain pen is a nib pen that, unlike its predecessor, the dip pen, contains an internal reservoir of liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action.
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C. Angle
D. Solid Angle
Flemings ”Left hand Rule” is associated with the effect of
A. Electric field on current
B. Magnetic field on magnet
C. Electric field on magnet
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The sky appears blue due to
A. Rayleigh scattering
B. Mie scattering
C. Back scattering
D. None of the above
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A. Concave lens
B. Convex lens
C. Convex mirror
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Which elements are malleable and good conductors of electricity?
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B. Iodine and silver
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D. Iodine and xenon
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A. Reflected
B. Refracted
C. Diffracted
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Mach number is used in connection with the speed of
A. sound
B. aircraft
C. spacecraft
D. ships
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