# NCERT Solutions for Class 11-science Physics Chapter 4 - Motion in a Plane

Page / Exercise

## Chapter 4 - Motion in a Plane 85

Solution 1 Solution 2 Solution 3 Solution 4

(a)The addition of two scalar quantities is meaningful only if they both represent the same physical quantity.

(b)The addition of a vector quantity with a scalar quantity is not meaningful.

(c) Yes, multiplying a vector by scalar is perfectly meaningful and gives a vector
in output having magnitude scalar times the magnitude of original vector. For example, force is multiplied with time to give impulse.

(d) Yes , product of two scalars is meaningful. For example, V=IR, multiplies scalars current and resistance to give voltage.

(e)The addition is meaningful if both the vectors have same dimensions.

(f)Yes, as both the vectors have same dimensions they can be added to give a vector output.

Solution 5 Solution 6        ## Chapter 4 - Motion in a Plane 86

Solution 7  Solution 8  Solution 9  Solution 10   Solution 11 Solution 12  Solution 13 ## Chapter 4 - Motion in a Plane 87

Solution 14  Solution 15  Solution 16  Solution 17 Solution 18 Solution 19 Solution 20   Solution 21    Solution 22       Solution 23 Solution 24 Solution 25  ## Chapter 4 - Motion in a Plane 88

Solution 26  Solution 27 Solution 28 Solution 29 Solution 30  Solution 31   Solution 32   ### STUDY RESOURCES

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