Please select a subject first
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For the object placed between the optical centre and focus of a convex lens, the image is ______.
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A body falls freely under gravity from rest. Name the kind of energy it will possess at the point from where it falls.
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A ball of mass m is thrown vertically up with an initial velocity so as to reach a height h. The correct statement is:
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What is the mechanical advantage of a single movable pulley in the ideal case?
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Name a machine which is used to multiply force.
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Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.

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Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.

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Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.

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Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.

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Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.

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Fig. shows the dimensions of an acute angled triangle. By geometrical construction mark the C.G. of the triangle.

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A right-angled triangle cardboard piece is placed as shown in fig. 7. Redraw the diagram showing the relative position of the vertices of the triangle when it is suspended by a pin from the hole A. Explain why the position changes?

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Give scientific reason for the following:
It is easier to push a boy standing on one leg than on both legs.
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Give scientific reason for the following:
There are chances of toppling when a truck takes a sharp turn especially when it is not fully loaded
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