Wave Nature Of Light Of Matter (de-Broglie)
Dual nature of radiation and Matter

142409 A beam of white light is incident normally on a plane surface absorbing $70 \%$ of the light and reflecting the rest. If the incident beam carries $10 \mathrm{~W}$ of power, the force exerted by it on the surface is

1 $3.3 \times 10^{-8} \mathrm{~N}$
2 $4.33 \times 10^{-8} \mathrm{~N}$
3 $2.3 \times 10^{-8} \mathrm{~N}$
4 $3.53 \times 10^{-8} \mathrm{~N}$
Dual nature of radiation and Matter

142410 The de-Broglie wavelength associated with an electron, accelerated through a potential difference of 121 volts is about:
[Take plank's constant $=h=6.6 \times 10^{-34} \mathrm{~J} . \mathrm{s}$, mass of electron $\left.9 \times 10^{-31} \mathrm{~kg}\right]$

1 $0.123 \mathrm{~nm}$
2 $0.112 \mathrm{~nm}$
3 $0.221 \mathrm{~nm}$
4 0.098
Dual nature of radiation and Matter

142411 The de-Broglie wavelength of an electron with kinetic energy of $320 \mathrm{eV}$ is $\left(\right.$ Take $\mathrm{h}=6.0 \times 10^{-34}$ SI unit, mass of electron $=m_{e}=9.0 \times 10^{-31} \mathrm{~kg}$. Charge of an electron $=1.6 \times 10^{-19} \mathrm{C}$.)

1 $85.8 \mathrm{pm}$
2 $110.5 \mathrm{pm}$
3 $62.5 \mathrm{pm}$
4 $50 \mathrm{pm}$
Dual nature of radiation and Matter

142412 Which of the following has the largest deBroglie wavelength?

1 a bullet of mass $0.02 \mathrm{~kg}$ moving with speed 1 $\mathrm{km} / \mathrm{s}$
2 a ball of mass $0.06 \mathrm{~kg}$ moving with speed 10 $\mathrm{m} / \mathrm{s}$
3 a particle of mass $0.01 \mathrm{~kg}$ moving with speed $100 \mathrm{~m} / \mathrm{s}$
4 a ball of mass $0.03 \mathrm{~kg}$ moving with speed 1 $\mathrm{m} / \mathrm{s}$
Dual nature of radiation and Matter

142409 A beam of white light is incident normally on a plane surface absorbing $70 \%$ of the light and reflecting the rest. If the incident beam carries $10 \mathrm{~W}$ of power, the force exerted by it on the surface is

1 $3.3 \times 10^{-8} \mathrm{~N}$
2 $4.33 \times 10^{-8} \mathrm{~N}$
3 $2.3 \times 10^{-8} \mathrm{~N}$
4 $3.53 \times 10^{-8} \mathrm{~N}$
Dual nature of radiation and Matter

142410 The de-Broglie wavelength associated with an electron, accelerated through a potential difference of 121 volts is about:
[Take plank's constant $=h=6.6 \times 10^{-34} \mathrm{~J} . \mathrm{s}$, mass of electron $\left.9 \times 10^{-31} \mathrm{~kg}\right]$

1 $0.123 \mathrm{~nm}$
2 $0.112 \mathrm{~nm}$
3 $0.221 \mathrm{~nm}$
4 0.098
Dual nature of radiation and Matter

142411 The de-Broglie wavelength of an electron with kinetic energy of $320 \mathrm{eV}$ is $\left(\right.$ Take $\mathrm{h}=6.0 \times 10^{-34}$ SI unit, mass of electron $=m_{e}=9.0 \times 10^{-31} \mathrm{~kg}$. Charge of an electron $=1.6 \times 10^{-19} \mathrm{C}$.)

1 $85.8 \mathrm{pm}$
2 $110.5 \mathrm{pm}$
3 $62.5 \mathrm{pm}$
4 $50 \mathrm{pm}$
Dual nature of radiation and Matter

142412 Which of the following has the largest deBroglie wavelength?

1 a bullet of mass $0.02 \mathrm{~kg}$ moving with speed 1 $\mathrm{km} / \mathrm{s}$
2 a ball of mass $0.06 \mathrm{~kg}$ moving with speed 10 $\mathrm{m} / \mathrm{s}$
3 a particle of mass $0.01 \mathrm{~kg}$ moving with speed $100 \mathrm{~m} / \mathrm{s}$
4 a ball of mass $0.03 \mathrm{~kg}$ moving with speed 1 $\mathrm{m} / \mathrm{s}$
Dual nature of radiation and Matter

142409 A beam of white light is incident normally on a plane surface absorbing $70 \%$ of the light and reflecting the rest. If the incident beam carries $10 \mathrm{~W}$ of power, the force exerted by it on the surface is

1 $3.3 \times 10^{-8} \mathrm{~N}$
2 $4.33 \times 10^{-8} \mathrm{~N}$
3 $2.3 \times 10^{-8} \mathrm{~N}$
4 $3.53 \times 10^{-8} \mathrm{~N}$
Dual nature of radiation and Matter

142410 The de-Broglie wavelength associated with an electron, accelerated through a potential difference of 121 volts is about:
[Take plank's constant $=h=6.6 \times 10^{-34} \mathrm{~J} . \mathrm{s}$, mass of electron $\left.9 \times 10^{-31} \mathrm{~kg}\right]$

1 $0.123 \mathrm{~nm}$
2 $0.112 \mathrm{~nm}$
3 $0.221 \mathrm{~nm}$
4 0.098
Dual nature of radiation and Matter

142411 The de-Broglie wavelength of an electron with kinetic energy of $320 \mathrm{eV}$ is $\left(\right.$ Take $\mathrm{h}=6.0 \times 10^{-34}$ SI unit, mass of electron $=m_{e}=9.0 \times 10^{-31} \mathrm{~kg}$. Charge of an electron $=1.6 \times 10^{-19} \mathrm{C}$.)

1 $85.8 \mathrm{pm}$
2 $110.5 \mathrm{pm}$
3 $62.5 \mathrm{pm}$
4 $50 \mathrm{pm}$
Dual nature of radiation and Matter

142412 Which of the following has the largest deBroglie wavelength?

1 a bullet of mass $0.02 \mathrm{~kg}$ moving with speed 1 $\mathrm{km} / \mathrm{s}$
2 a ball of mass $0.06 \mathrm{~kg}$ moving with speed 10 $\mathrm{m} / \mathrm{s}$
3 a particle of mass $0.01 \mathrm{~kg}$ moving with speed $100 \mathrm{~m} / \mathrm{s}$
4 a ball of mass $0.03 \mathrm{~kg}$ moving with speed 1 $\mathrm{m} / \mathrm{s}$
Dual nature of radiation and Matter

142409 A beam of white light is incident normally on a plane surface absorbing $70 \%$ of the light and reflecting the rest. If the incident beam carries $10 \mathrm{~W}$ of power, the force exerted by it on the surface is

1 $3.3 \times 10^{-8} \mathrm{~N}$
2 $4.33 \times 10^{-8} \mathrm{~N}$
3 $2.3 \times 10^{-8} \mathrm{~N}$
4 $3.53 \times 10^{-8} \mathrm{~N}$
Dual nature of radiation and Matter

142410 The de-Broglie wavelength associated with an electron, accelerated through a potential difference of 121 volts is about:
[Take plank's constant $=h=6.6 \times 10^{-34} \mathrm{~J} . \mathrm{s}$, mass of electron $\left.9 \times 10^{-31} \mathrm{~kg}\right]$

1 $0.123 \mathrm{~nm}$
2 $0.112 \mathrm{~nm}$
3 $0.221 \mathrm{~nm}$
4 0.098
Dual nature of radiation and Matter

142411 The de-Broglie wavelength of an electron with kinetic energy of $320 \mathrm{eV}$ is $\left(\right.$ Take $\mathrm{h}=6.0 \times 10^{-34}$ SI unit, mass of electron $=m_{e}=9.0 \times 10^{-31} \mathrm{~kg}$. Charge of an electron $=1.6 \times 10^{-19} \mathrm{C}$.)

1 $85.8 \mathrm{pm}$
2 $110.5 \mathrm{pm}$
3 $62.5 \mathrm{pm}$
4 $50 \mathrm{pm}$
Dual nature of radiation and Matter

142412 Which of the following has the largest deBroglie wavelength?

1 a bullet of mass $0.02 \mathrm{~kg}$ moving with speed 1 $\mathrm{km} / \mathrm{s}$
2 a ball of mass $0.06 \mathrm{~kg}$ moving with speed 10 $\mathrm{m} / \mathrm{s}$
3 a particle of mass $0.01 \mathrm{~kg}$ moving with speed $100 \mathrm{~m} / \mathrm{s}$
4 a ball of mass $0.03 \mathrm{~kg}$ moving with speed 1 $\mathrm{m} / \mathrm{s}$