11th Class Physics Physical World / भौतिक जगत Question Bank 11th CBSE Physics Mathematical Tools, Units & Dimensions

  • question_answer
    Suggest a distance corresponding to each of the following order of length : (i) \[{{10}^{7}}\,m\]                        (ii) \[{{10}^{4}}\,m\]                (iii) \[{{10}^{3}}\,m\]      (iv) \[{{10}^{2}}\,m\]                      (v) \[{{10}^{-3}}\,m\]               (vi) \[{{10}^{-6}}\,m\]                    (vii) \[{{10}^{-14}}\,m\]

    Answer:

    (i) \[\text{1}{{0}^{\text{7}}}\text{m}\] ? is the order of radius of earth, (ii) \[\text{1}{{0}^{4}}\text{m}\] ? is the order of height of mount everest,                                                     (iii) \[\text{1}{{0}^{3}}\text{m}\] ? is the order of distance travelled by sound in air in 3 sec.                                   (iv) \[\text{1}{{0}^{2}}\text{m}\] ? is the order of length of a college playground, (v) \[\text{1}{{0}^{-3}}\text{m}\] ? is the order of thickness of a cardboard, (vi) \[\text{1}{{0}^{-6}}\text{m}\] ? mean free path of air molecules, (vii) \[\text{1}{{0}^{-14}}\text{m}\] ? is the order of size of an atomic nucleus.


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