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Why springs are made of steel and not of...

Why springs are made of steel and not of copper?

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JBD PUBLICATION-MODEL TEST PAPER -05-EXERCISE
  1. If a body is moving with a constant angular velocity ,is it alo movin...

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  2. Why is G called universal gravitational constant ?

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  3. Why springs are made of steel and not of copper?

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  4. What is the role of physics in our daily life?

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  5. Check the relation,1/2 mv^2 = F.S Using dimensional analysis ,where ev...

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  6. A projectile is fired with velocity making an angle theta with the hor...

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  7. Write an expression for the centripetal force.

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  8. Discuss potential energy of a coiled spring.

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  9. Define escape velocty. Obtain an expression for the escape velocity of...

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  10. Define surface energy. Find the relation between surface energy and su...

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  11. Find the amount of heat required to convert 10 g ice at -10^@C into st...

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  12. State first law of thermodynamics.

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  13. The temperature of water falling from a dam gets increased by 0.1^@C.F...

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  14. What are resonant vibrations?

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  15. Find the relations for the first harmonic produced by an open end orga...

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  16. What determines the natural frequency of a body?

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  17. What is simple harmonic motion and prove a simple pendulum oscillates ...

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  18. Define force of Adhesion.

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  19. Find an expression for the heat which flows from one pont to the other...

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  20. Define Snell's law. What is refractive index? Write its mathematical f...

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