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A tachometer is a device to measure...

A tachometer is a device to measure

A

Gravitational pull

B

Speed of rotation

C

Surface tension

D

Tension in a spring

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The correct Answer is:
B
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ERRORLESS -MOTION IN TWO DIMENSION-Exercise
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  5. The ratio of angular speeds of minute hand and hour hand of a watch is

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  6. A car travels north with a uniform velocity. It goes over a piece of m...

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  7. An aircraft executes a horizontal loop with a speed of 150 m/s with it...

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  8. A particle is moving in a horizontal circle with constant speed. It ha...

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  9. A motor cyclist moving with a velocity of 72 km/hour on a flat road ta...

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  10. A train is moving towards north. At one place it turn towards north -e...

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  11. The angular speed of a fly wheel making 120 revolutions / minute is

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  12. A particle is moving on a circular path with constant speed, then its ...

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  13. A car is moving on a circular path and takes a turn. If R(1) and R(2) ...

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  14. A body of mass 100g is tied to one end of a 2m long string. The other ...

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  15. A road is 10 m wide. Its radius of curvature is 50 m . The outer edge ...

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  16. Certain neutron stars are believed to be rotating at about 1rev//sec ....

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  17. A particle revolves round a circular path. The acceleration of the par...

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  18. The length of second's hand in watch is 1 cm. The change in Velocity o...

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  19. A particle moves in a circle of radius 25 cm at two revolutions per se...

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  20. An electric fan has blades of length 30 cm as measured from the axis o...

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