Motion and its Types

CLEAR YOUR CONCEPTS: Motion and its Types: Rest: If an object does not change its position with respect to time, then the object is said to in rest. Motion: If an object changes ...

LIGHT AND SHADOWS

LIGHT AND SHADOWS: Light helps us to see objects. Luminous objects: Objects that give out or emit light of their own. Ex: Sun, Torch, Glow-worm, e...

PIN-HOLE CAMERA

PIN-HOLE CAMERA: CONSTRUCTION: Two boxes are taken so that one can slide into another with no gap in between. One side of each box is cut open. On the ...

MAGNETS

MAGNETS: Magnets:  The substances having the property of attracting iron, are known as magnets. Discovery of Magnets: A shepherd, names Magnes, ...

BOATS AND STREAMS

BOATS AND STREAMS: The following terms are frequently used in the problems on boats and streams. (a) Still water: It implies that the speed of water in th...

RATIO AND PROPORTION

RATIO AND PROPORTION: Ratio: The ratio of two quantities a and b in the same units, is the fraction and we write it as a : b . In the ratio a : b , we ca...

PARTNERSHIP

PARTNERSHIP: When 2 or more than two persons run a business jointly, they are called partners ; and the deal is known as partnership . Ratio of divisi...