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If vec a and vec b are two unit vectors ...

If `vec a` and `vec b` are two unit vectors and `theta` is the angle between them, then the unit vector along the angular bisector of `vec a` and `vec b` will be given by

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AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -2
  1. The volume of a sphere is 1.76 m^3 What will be the volume of 25 such ...

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  2. A body of mass m = 3.513 kg is moving along the x-axis with a speed of...

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  3. If vec a and vec b are two unit vectors and theta is the angle between...

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  4. Two full turns of the circular scale of a screw gauge cover a distance...

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  5. In a vernier callipers, n divisions of its main scale match with (n+1)...

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  6. A Vernier callipers has 1 mm marks on the main scale . It has 20 equa...

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  7. A screw gauge gives the following reading when used to mesure the diam...

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  8. The vernier scale of a travelling microscope has 50 divisions which co...

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  9. Time for 20 oscillations of a pendulum is measured as t(1)=39.6" "s,...

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  10. The measured mass and volume of a body are 53.63 g and 5.8cm^(3) resp...

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  11. A Vernier callipers has 1 mm marks on the main scale . It has 20 equa...

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  12. Which of the following numbers has least number of significant figures...

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  13. The number of significant figures in 0.0006032 is

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  14. The number of significant figures in 6.320 is

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  15. The radius of a circle is 2.12 metre. Its area according to the rule o...

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  16. Epistasis and dominance are respectively

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  17. The mass of a block is 87.2 g and its volume is 25 cm^(3). What is its...

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  18. The length of a rod is measured by different instruments. Of the follo...

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  19. 2.34 is obtained by rounding of the number

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  20. When 0.0003125 is reduced to 3 significant figures its value is

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