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20.96 rounded off to 3 significant figur...

20.96 rounded off to 3 significant figures is

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20.96 has four significant figures. The fourth significant figure is more than 5 and hence on rounding off to three significant figures, the given measurement will become 20.9 + 0.1 i.e. , 21.0 .
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AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -3
  1. 20.96 rounded off to 3 significant figures is

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  2. The length of a rectangular plate is measured as 10 cm by a vernier sc...

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  3. The length of a metallic sheet is measured as 10.0 cm using a metre sc...

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  4. The mass of a beaker is (10.1 pm 0.1)g when empty and (17.3pm0.1)g whe...

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  5. The measured mass the volume of a body are 2.42 and 4.7 cm^3 respectiv...

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  6. When two resistors of (600pm3) ohm and (300pm 6) ohm are connected in ...

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  7. A parabolic wire as shown in the figure is located in x-y plane and ca...

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  8. Two resistors of 10KOmega and 20KOmega are conne cted in series. If t...

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  9. Imagine a light planet revolving around a very massive star in a circu...

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  10. A man in a lift ascending with an upward acceleration a throws a ball ...

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  11. While measuring the acceleration due to gravity by a simple pendulum, ...

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  12. The value of escape speed from the surface of earth is

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  13. In the measurement of volume of solid sphere using the formula V=(4)/(...

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  14. A uniform round object of mass M, radius R and moment of inertia about...

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  15. Resistance of a given wire is obtained by measuring the current flowin...

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  16. In an experiment the valno of refractive index of glass was found to b...

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  17. A physical quantity is represented by X=M^(a)L^(b)T^(-c).If the percen...

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  18. In a simple pendulum experiment, length is measured as 31.4 cm with an...

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  19. Figure shows two capacitors of capacitance 2muF and 4muF and a cell of...

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  20. In an experiment the valno of refractive index of glass was found to b...

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  21. A rectangular metal slab of mass 33.333 g has its length 8.0 cm, bread...

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