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A spanner is used to unscrew a nut. A fo...

A spanner is used to unscrew a nut. A force of 40 N is applied to the end of the spanner, which is 10 cm away from the centre of the nut. Calculate the moment of force when the spanner is horizontal.

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ICSE-MODEL TEST PAPERS -Model Test Paper 1 (Section II)
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  9. What do you mean by dispersion of light?

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  10. For an incident ray directed towards centreof curvature of a spherical...

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  11. If the focal length of a concave mirror is 12 cm, what would be its ra...

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  12. What is the nature of the image formed by a convex mirror?

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  13. Write two principles on which a refrigerator works.

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  19. What do you mean by pure tone? Which instrument can produce it?

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