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Physics Class 9 - Important MCQs - 12

Physics Class 9 - Important MCQs - 12

1. Sin 45o

1) 0.866
2) 0.707
3) 1
4) zero
2. Position of bodies disturbed

1) Unstable equilibrium
2) Newton meter
3) Positive torque
4) Neutral equilibrium
3. Washing Machine

1) constant quantity
2) circular motion
3) mg
4) Newton
4. Axis of rotation

1) Newton
2) right hand rule
3) Straight line
4) Like parallel forces
5. Tension

1) Frame of reference
2) Unlike parallel forces
3) Torque
4) Force
6. Orbital velocity

1) Mountains
2) GM/(R+h)2
3) 7.9 km/sec
4) ma
7. Inclined Plane

1) R
2) Inclined plane
3) M.A=1
4) Lever
8. Bolt

1) M.A=1
2) Lever
3) Nut
4) Rotated Point
9. Human foot

1) pulley
2) lever
3) 100% Efficiency
4) Wheel & Axle
10. Time

1) Second
2) Meter
3) Watt
4) Joule
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