${H^ + },\,\,H{e^ + }\,\,\,{\rm{and}}\,\,\,{O^{ + + }}$ ions having same kinetic energy pass through a region of space filled with uniform magnetic field B directed perpendicular to the velocity of ions. The masses of the ions ${H^ + },\,\,H{e^ + }\,\,\,{\rm{and}}\,\,\,{O^{ + + }}$ are respectively in the ratio 1:4:16. As a result A)${H^ + }$ ions willbedeflected most B) ${O^{ + + }}$ ions willbedeflectedleast C) $H{e^ + }\,\,\,{\rm{and}}\,\,\,{O^{ + + }}$ ions will suffer samedeflection D) All ions will suffer thesamedeflection

JEE PHYSICS MCQ: ATOMS

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{H^ + },\,\,H{e^ + }\,\,\,\mathrm{and}\,\,\,{O^{ + + }}

ions having same kinetic energy pass through a region of space filled with uniform magnetic field B directed perpendicular to the velocity of ions. The masses of the ions

{H^ + },\,\,H{e^ + }\,\,\,\mathrm{and}\,\,\,{O^{ + + }}

are respectively in the ratio 1:4:16. As a result
A)

{H^ + }

ions willbedeflected most
B)

{O^{ + + }}

ions willbedeflectedleast
C)

H{e^ + }\,\,\,\mathrm{and}\,\,\,{O^{ + + }}

ions will suffer samedeflection
D) All ions will suffer thesamedeflection

View answer and explanation

Correct option: A

A, C

Options A and C are correct. The radius of the circular path depends on mass and charge, and the deflection is inversely proportional to the radius. H+ and He++ have the same deflection.

JEE PHYSICS MCQ: ATOMS

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