142405 An electron with speed $v$ and a photon with speed $\mathrm{c}$ have the same de-Broglie wavelength. If the kinetic energy and momentum of electron are $E_{e}$ and $P_{e}$ and that of photon are $E_{p h}$ and $P_{p h}$ respectively. Which of the following is correct?

142406 A proton, a neutron, an electron and an $\alpha$ particle have same energy. If $\lambda_{p}, \lambda_{n}, \lambda_{e}$ and $\lambda_{\alpha}$ are the de Broglie's wavelengths of proton, neutron, electron and $\alpha$ particle respectively, then choose the correct relation from the following :

142407 A particle of mass ' $m$ ' and charge ' $q$ ' accelerated by a potential difference $V_{0}$, has a de-Broglie wavelength ' $\lambda$ '. If another particle of mass ' $2 \mathrm{~m}$ ' and charge ' $2 \mathrm{q}$ ', accelerated by a potential difference $V$, has a de-Broglie wavelength $\frac{\lambda}{2}$, then $V$ is equal to

142408 A particle of mass $4 \times 10^{-27} \mathrm{~kg}$ is moving with velocity $3 \times 10^{5} \mathrm{~m} / \mathrm{s}$. The de- Broglie Wavelength associated with the particle is (Use h $=6.6 \times 10^{-34} \mathrm{Js}$ )

142405 An electron with speed $v$ and a photon with speed $\mathrm{c}$ have the same de-Broglie wavelength. If the kinetic energy and momentum of electron are $E_{e}$ and $P_{e}$ and that of photon are $E_{p h}$ and $P_{p h}$ respectively. Which of the following is correct?

142406 A proton, a neutron, an electron and an $\alpha$ particle have same energy. If $\lambda_{p}, \lambda_{n}, \lambda_{e}$ and $\lambda_{\alpha}$ are the de Broglie's wavelengths of proton, neutron, electron and $\alpha$ particle respectively, then choose the correct relation from the following :

142407 A particle of mass ' $m$ ' and charge ' $q$ ' accelerated by a potential difference $V_{0}$, has a de-Broglie wavelength ' $\lambda$ '. If another particle of mass ' $2 \mathrm{~m}$ ' and charge ' $2 \mathrm{q}$ ', accelerated by a potential difference $V$, has a de-Broglie wavelength $\frac{\lambda}{2}$, then $V$ is equal to

142408 A particle of mass $4 \times 10^{-27} \mathrm{~kg}$ is moving with velocity $3 \times 10^{5} \mathrm{~m} / \mathrm{s}$. The de- Broglie Wavelength associated with the particle is (Use h $=6.6 \times 10^{-34} \mathrm{Js}$ )

142405 An electron with speed $v$ and a photon with speed $\mathrm{c}$ have the same de-Broglie wavelength. If the kinetic energy and momentum of electron are $E_{e}$ and $P_{e}$ and that of photon are $E_{p h}$ and $P_{p h}$ respectively. Which of the following is correct?

142406 A proton, a neutron, an electron and an $\alpha$ particle have same energy. If $\lambda_{p}, \lambda_{n}, \lambda_{e}$ and $\lambda_{\alpha}$ are the de Broglie's wavelengths of proton, neutron, electron and $\alpha$ particle respectively, then choose the correct relation from the following :

142407 A particle of mass ' $m$ ' and charge ' $q$ ' accelerated by a potential difference $V_{0}$, has a de-Broglie wavelength ' $\lambda$ '. If another particle of mass ' $2 \mathrm{~m}$ ' and charge ' $2 \mathrm{q}$ ', accelerated by a potential difference $V$, has a de-Broglie wavelength $\frac{\lambda}{2}$, then $V$ is equal to

142408 A particle of mass $4 \times 10^{-27} \mathrm{~kg}$ is moving with velocity $3 \times 10^{5} \mathrm{~m} / \mathrm{s}$. The de- Broglie Wavelength associated with the particle is (Use h $=6.6 \times 10^{-34} \mathrm{Js}$ )

142405 An electron with speed $v$ and a photon with speed $\mathrm{c}$ have the same de-Broglie wavelength. If the kinetic energy and momentum of electron are $E_{e}$ and $P_{e}$ and that of photon are $E_{p h}$ and $P_{p h}$ respectively. Which of the following is correct?

142406 A proton, a neutron, an electron and an $\alpha$ particle have same energy. If $\lambda_{p}, \lambda_{n}, \lambda_{e}$ and $\lambda_{\alpha}$ are the de Broglie's wavelengths of proton, neutron, electron and $\alpha$ particle respectively, then choose the correct relation from the following :

142407 A particle of mass ' $m$ ' and charge ' $q$ ' accelerated by a potential difference $V_{0}$, has a de-Broglie wavelength ' $\lambda$ '. If another particle of mass ' $2 \mathrm{~m}$ ' and charge ' $2 \mathrm{q}$ ', accelerated by a potential difference $V$, has a de-Broglie wavelength $\frac{\lambda}{2}$, then $V$ is equal to

142408 A particle of mass $4 \times 10^{-27} \mathrm{~kg}$ is moving with velocity $3 \times 10^{5} \mathrm{~m} / \mathrm{s}$. The de- Broglie Wavelength associated with the particle is (Use h $=6.6 \times 10^{-34} \mathrm{Js}$ )