Home
Class 12
PHYSICS
A bullet of mass 5 g travelling with a s...

A bullet of mass 5 g travelling with a speed of 210 m/s, strikes a fixed wooden target. One half of its kinetic energy is converted into heat in the bullt while the other half is coverted into heat in the wood. The rise of temperature of the bullet if the specific heat of its meterial is 0.030 cal/`(g - ""^@C) (1 cal = 4.2 xx 10^7" ergs")` close to :

A

`87.5^@C`

B

`83.3^@C`

C

`119^@C`

D

`38.4^@C`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR|Exercise Chemistry|1 Videos
  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise Physics (Section B )|10 Videos

Similar Questions

Explore conceptually related problems

A bullet of mass 5g travelling with speed of 210 m/s hits a plank and stops half of its KE is converted to heat of bullet and half is converted to heat of wood (plank) what is change in temperature of bullet ( heat capacity of bullet was 0.30 J/degC )

A lead bullet of mass 21g travelling at a speed of 100 ms^(-1) comes to rest in a wooden block. If no heat is taken away by the wood, the rise in temperature of the bullet in the wood nearly is (Sp. Heat of lead 80cal/kg .^(@)C )

A bullet of mass 10 gm strikes a target at 400 m//s velocity and does half of its initial velocity. The loss of kinetic energy in joules is

A lead bullet weighing 20 g and moving with a velocity of 100 ms^(-1) comes to rest in a fixed block of wood. Calculate the heat developed and the rise in temperature of the bullet assuming that the half of the heat is absorbed by the bulley. The specific heat of lead is 0.03 cal g^(-1).^(@)C^(-1) .

A bullet of mass 5gm is moving with speed 400m//s . Strike a targent and energy. Then calculate rise of temperature of bullet. Assuming all the lose in kinetic energy is converted into heat energy of bullet if is specific heat is 500 J//kg^(@)C .

Specific heat capacity is expressed in cal // g .^(@) C

JEE MAINS PREVIOUS YEAR-JEE MAINS 2020-PHYSICS
  1. In a resonance tube experiment when the tube is filled with water up t...

    Text Solution

    |

  2. An electrical power line, having a total resistance of 2Omega, deliver...

    Text Solution

    |

  3. A bullet of mass 5 g travelling with a speed of 210 m/s, strikes a fix...

    Text Solution

    |

  4. A force vecF = (hati + 2hatj +3hatk)N acts at a point (4hati + 3hatj -...

    Text Solution

    |

  5. A beam of electrons of energy E scatters from a target having atomic s...

    Text Solution

    |

  6. A particle of mass 220 meV//c^2 collides with a hydrogen tom at rest. ...

    Text Solution

    |

  7. A compound microscope consists of an objective lens of focal length 1 ...

    Text Solution

    |

  8. Two concentric circular coils, C1 and C2, are ploced in the XY plane. ...

    Text Solution

    |

  9. A screw gauge has 50 divisions on its circular scale. The circular sca...

    Text Solution

    |

  10. A sound source S is moving along a straight track with speed v, and is...

    Text Solution

    |

  11. Fig, here shows P and Q as two equally intense coherent sources emitti...

    Text Solution

    |

  12. If the potential energy between two molecules is given by U= -(A)/(r^6...

    Text Solution

    |

  13. An AC circuit has R= 100 Omega , C= 2 mu and L= 80 mH, connected in se...

    Text Solution

    |

  14. Charges Q1 and Q2 are at points A and B of a right angle triangle OAB ...

    Text Solution

    |

  15. Shown in the figures is a hollow icecream cone (it is open at the top)...

    Text Solution

    |

  16. Four point masses, each of mass m, are fixed at the corners of a squar...

    Text Solution

    |

  17. For the given input voltage wavelength V("in")(t) , the output voltage...

    Text Solution

    |

  18. A particle of charge q and mass m is moving with a velocity -v hati (v...

    Text Solution

    |

  19. An insect is at the bottom of a hemispherical ditch of radius 1 m. It ...

    Text Solution

    |

  20. A satellite is in an elliptical orbit around a planet P. It is observe...

    Text Solution

    |