State triangle law of of vector addition .

In the following questions a statement of assertion (A) is followed by a statement of reason ( R). A : The addition of two vectors vecP and vecQ is commutative R: By triangle law of vector addition we can prove vecP+vecQ=vecQ+vecP .

State parallelogram law of vector addition. Find analytically the magnitude and direction of resultant vector. Apply it to find the resultant when, (i) Two vectors are parallel to each other (ii) Two vectors are perpendicular to each other

State parallelogram of law of vector addition .

Draw a diagram to show the associative law of vector addition .

Is any difference between triangle law and parallelogram law of vector addition ?

State the laws of reflection.

State Charles.s law

Assertion: A vector qunatity is a quantity that has both magnitude and a direction and obeys the triangle law of addition or equivalentyly the parallelogram law of addition. Reason: The magnitude of the resultant vector of two given vectors can never be less than the magnitude of any of the given vector.

(A): Electric Current and velocity of light both have direction as well as magnitude but still are not considered as vectors. (R): They do not follow laws of vector addition.

State the Law of Malus.