Electrons- nuclei- atoms and molecules like all forms of matter- will fall under the influence of gravity- Consider separately the beam of electrons- of nuclei- of atoms and of molecules travelling a horizontal distance of 1 m- Let the average speed of electrons be 3- 10 7 m s -1- for a thermal neutron 2-2- 10 5 m s -1- for a neon atom 5-8- 10 2 m s -1 and for an oxygen molecule 4-6- 10 2 m s -1- The beams move through vaccuum horizontally with initial velocities mentioned above- A golf ball is also projected horizontally with 20 m s -1 in vacuum-Out of the given beams which deviates maximum in travelling 2m-

The correct option is A oxygen beamThe vertical displacement will be 12gt^2 The horizontal distance travelled is same for all particles. #160; t_ox ...

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Byju's Answer

Standard XII

Physics

Horizontal and Vertical Components of Projectile Motion

Electrons, nu...

Question

Electrons, nuclei, atoms and molecules like all forms of matter, will fall under the influence of gravity. Consider separately the beam of electrons, of nuclei, of atoms and of molecules travelling a horizontal distance of $1 m$ . Let the average speed of electrons be $3 \times 10^{7} m s^{- 1}$ , for a thermal neutron $2.2 \times 10^{5} m s^{- 1}$ , for a neon atom $5.8 \times 10^{2} m s^{- 1}$ and for an oxygen molecule $4.6 \times 10^{2} m s^{- 1}$ . The beams move through vaccuum horizontally with initial velocities mentioned above. A golf ball is also projected horizontally with $20 m s^{- 1}$ in vacuum.
Out of the given beams which deviates maximum in travelling $2 m$ ?

electron beam

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neutron beam

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neon beam

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oxygen beam

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Solution

The correct option is A oxygen beam
The vertical displacement will be $\frac{1}{2} g t^{2}$
The horizontal distance travelled is same for all particles. $t_{o x y g e n}$ is maximum since it has the least velocity.
Hence, the oxygen beam will have the maximum deviation from the horizontal trajectory.

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The correct option is A oxygen beamThe vertical displacement will be 12gt2The horizontal distance travelled is same for all particles. toxygen is maximum since it has the least velocity.Hence, the oxygen beam will have the maximum deviation from the horizontal trajectory.