Home
Class 12
CHEMISTRY
A body of mass x g is moving with a velo...

A body of mass x g is moving with a velocity of 100m/s. It de Broglie wavelength is `6.62xx10^(-35)m`. Hence x is `(h=6.62xx10^(-34)J-s)`

A

0.25kg

B

0.15 kg

C

0.2 kg

D

0.1 kg

Text Solution

Verified by Experts

The correct Answer is:
D
Accordin to de-Broglie's equation,
`lamda=h/(mv)`
Given `lamda=6.62xx10^(-35)m`
`v=100ms^(-1)`
`h=6.62xx10^(-34)Js`
and `m=x` kg
`:.6.62xx10^(-35)=(6.62xx10^(-34))/(x xx 100)`
`impliesx=0.1 kg`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • KARNATAKA CET 2008

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

  • KARNATAKA CET 2010

    KCET PREVIOUS YEAR PAPERS|Exercise Chemistry|60 Videos

Similar Questions

Explore conceptually related problems

The de Broglie wavelength of a neutron having energy 6.4 xx 10^-19 J is

The de-Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 meters per second is approximately (h = 6.63 xx 10^(-34) Js)

Knowledge Check

  • A body of mass x kg is moving with a velocity of 100 m/s.Its de Broglie wavelength is 6.62xx10^(-35) m . Hencex is [h=6.2xx10^(-34)Js]

    A
    `0.25 kg`
    B
    `0.15 kg`
    C
    `0.2 kg`
    D
    `0.1 kg`

  • A body of mass x kg is moving with a velocity of 100 ms^(-1). Its de-Broglie wavelength is 6.62 xx 10^(-35) m. Hence x is (h = 6.62 xx 10^(-34) Js)

    A
    0.1 kg
    B
    0.25 kg
    C
    0.15 kg
    D
    0.2 kg.

  • The momentum of a particle having a de-Broglie wavelenth of 10^(-17) m is ( h=6.625xx10^(-34)Js )

    A
    `6.625xx10^(-17)kgms^(-1)`
    B
    `3.3125xx10^(-7)kgms^(-1)`
    C
    `13.25xx10^(-17)kgm^(-1)`
    D
    `26.5xx10^(-7)kgms^(-1)`

    • Similar Questions

    Explore conceptually related problems

    A body of mass 10 mg is moving with a velocity of 100 ms^(-1) .The wavelength of de-Brogile wave associated with it would be ( h = 6.63 xx 10^(-34) Js)

    A body of mass 10 mg is moving with a velocity of 100m s^(-1) . The wavelength of de-Broglie wave associated with it would be: (Note : h = 6.63 xx 10^(-34) Js)

    What is the wavelength associated with an electron moving with a velocity of 10_6 m/s ? (given h = 6.63 xx 10^(-34) js and m = 9.11 xx 10^(-31) kg)

    The number of photons of wavelength 13.2A^(@) in 6J of energy is (h=6.6xx10^(-34)J.s)

    The work function for a metal for which threshold wavelength is 6.6xx10^(-5)m , is

    Home
    Profile