Home
Class 12
PHYSICS
A substance of mass 49.53 g occupies 1.5...

A substance of mass 49.53 g occupies `1.5 cm^(3)` of volume. The density of the substance (in `g cm^(-3)`) with correct number of significant figures is

A

3.3

B

3.302

C

`3.30`

D

`3.300`

Text Solution

Verified by Experts

Mass - 49.53 g, volume = 1.5 cm
`"Density" =("Mass") /("Volume")= (49.53)/(1.5)= 33.02 g cm^(-3)`
Number of significant figures in given data are 4 and 2 for mass and volume respectively.
The correct number of significant number in result must be 2.
`:.` The density of substance is `3.3 g cm^(-3)`
* None of the given options is correct.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2015

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
  • KARNATAKA CET 2018

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

State the number of significant 0.2370 g cm^(-3)

The mass and volume of a block of material are 4.237 g and 2.5cm^(3) respectively. The density of material of the block in correct significant figures is :

The volume of 50 g of a substance is 20 cm^(3). if the density of water is 1 g cm^(-3) , will the substance float or sink?

5.74 g of a substance occupies 1.2cm^(3) . Express its density by keeping the significant figures in view.

The mass of a piece of paper is 0.02 g and the mass of a solid substance and the piece of paper is 20.036 g. If the volume of the solid is 2.16 cm^3 , calculate its density to the proper number of significant digits.

Write 50000 g in exponential form (3 significant figures).

The density of a gas is 1.964 g dm^(-3) at 273 K and 76 cm Hg. The gas is

A metal X ( at. Mass = 60) has a body centred cubic crystal structure. The density of the metal is 4.2 g cm^(-3) . The volume of unit cell is

The density of vanadium is 5.968 cm^(-3) . Its density in SI units of kg m^(-3) is

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2017-PHYSICS
  1. In the three parts of a transistor, 'Emitter' is of

    Text Solution

    |

  2. A piece of copper is to be shaped into a conducting wire of maximum re...

    Text Solution

    |

  3. If vec A =2 hat i+ 3 hat j+ 8 hat k is perpendicular to vec B= 4 hat j...

    Text Solution

    |

  4. Which of the following properties is 'False' for a bar magnet?

    Text Solution

    |

  5. The energy gap in case of which of the following is less than 3 eV?

    Text Solution

    |

  6. The energy (in W) required to excite an electron from n = 2 to n = 4 s...

    Text Solution

    |

  7. According to Huygens' principle, during refraction of light from air t...

    Text Solution

    |

  8. The value of acceleration due to gravity at a depth of 1600 km is equa...

    Text Solution

    |

  9. A jet plane of wing span 20 m is travelling towards west at a speed of...

    Text Solution

    |

  10. A cylindrical conductor of diameter 0.1 mm carries a current of 90 mA....

    Text Solution

    |

  11. Two balls are thrown simultaneously in air. The acceleration of the ce...

    Text Solution

    |

  12. The scientist who is credited with the discovery of 'nucleus' in an at...

    Text Solution

    |

  13. Three point charges of +2q, +2q and -4q are placed at the corners A, B...

    Text Solution

    |

  14. The mass defect of ""(2)^(4)He is 0.03 u. The binding energy per nucl...

    Text Solution

    |

  15. Young's modulus is defined as the ratio of

    Text Solution

    |

  16. A motor pump lifts 6 tonnes of water from a well of depth 25 m to the ...

    Text Solution

    |

  17. A substance of mass 49.53 g occupies 1.5 cm^(3) of volume. The density...

    Text Solution

    |

  18. A galvanometer of resistance 50 Omega is connected to a battery of 3 V...

    Text Solution

    |

  19. If vec E and vec B representelectric and magnetic field vectors of an ...

    Text Solution

    |

  20. The minimum value of effective capacitance that can be obtained by com...

    Text Solution

    |