Q. Which one of the following attributes is not true for uniform circular motion ?
1) The distance is always equal to the displacement
2) Velocity is always perpendicular to the radius of the circle
3) The speed of the body remain constant
4) The velocity of the body is continuously changing
Q. Once a satellite has been launched into orbit, the only force governing its motion is the force of -
1) Gravity
2) Elasticity
3) Friction
4) Fuel driven
Q. Which of the following is not a primary force which influences ocean currents ?
1) Magnetic fields of the earth
2) Heating by the sun
3) Gravity
4) Coriolis Force
Q. Pyrolusite is an ore of ________
1) Manganese
2) Chromium
3) Titanium
4) Uranium
Q. The weight of an object is due to -
1) the net force acting on it
2) the total of all forces acting on it irrespective of their directions
3) the force that it exerts on the ground
4) its inert property
Q. The direction of acceleration in uniform circular motion is along the -
1) direction of motion
2) tangent to the circle at the point of observation
3) direction of velocity
4) direction perpendicular to velocity
Q. How many internal reflections of ligh take place in the formation of primary rainbow?
1) 0
2) 1
3) 2
4) More than 2
Q. Which one of the following laws of electromagnetism does not give the direction of magnetic field?
1) Right-hand thumb rule
2) Fleming's left-hand rule
3) Fleming's right-hand rule
4) Faraday's law of electromagnetic induction
Q. A non-spherical shining spoon can generally be considered as a -
1) Spherical mirror
2) Parabolic mirror
3) Plane mirror
4) Lens
Q. Which one of the following is an electric conductor?
1) A plastic sheet
2) Distilled water
3) Human body
4) A wooden thin sheet
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