Home Maths JEE - Advanced Previous Year Paper JEE-Advanced-2017-Paper-1 SECTION 3 (Maximum Marks : 18) • This sectio…
Maths JEE - Advanced Previous Year Paper JEE-Advanced-2017-Paper-1 Single Correct MCQ
Published on: August 13, 2026

SECTION 3 (Maximum Marks : 18)

• This section contains SIX questions of matching type

• The section contains TWO tables (each having 3 columns and 4 rows)

• Based on each table, there are THREE questions

• Each question has FOUR options

A charged particle (electron or proton) is introduced at the origin (x = 0, y = 0, z = 0) with a given initial velocity . A uniform electric field  and magnetic field Bare given in columns 1, 2 and 3, respectively. The quantities E0, B0 are positive in magnitude.

Column 1

Column 2

Column 3

(I) Electron with

(i)

(P)

(II) Electron with

(ii)

(Q)

(III) Proton with

(iii)

(R)

(IV) Proton with

(iv)

(S)

A
, (II) (iii) (S) (II)(ii)(R) (IV) (ii) (S)
B
, (IV) (i) (S) (IV)(ii)(R) (III) (ii) (P)
C
, and (III) (ii) (R) (IV) (i) (S) (II) (iii) (Q)
D
. ONLY ONE of these four options is correct • For each question, marks will be awarded in one of the following catogories: Full Marks +3 If only the bubble corresponding to the correct answer is darkened Zero Marks 0 If none of the bubbles is darkened Negative Marks -1 In all other cases Answer Q.(i), Q.(ii) and Q.(iii) by appropriately matching the information given in the three columns of the following table. (i) In which case will the particle move in a straight line with constant velocity? (III) (iii) (P) (ii) In which case will the particle describe a helical path with axis along the positive z direction? (III) (iii) (P) (iii) In which case would be particle move in a straight line along the negative direction of y-axis (i.e., more along - y) ? (III)(ii)(R)

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Text Solution

Verified by Experts
The correct answer is:
CHECK THE SOLUTION.

(i)

For constant velocity

(ii)

For helical path, having its axis along z-axis, B must be along z-axis.

(iii)

and must be along same line (i.e. parallel or anti parallel) with initial velocity either zero or along the field ( as well ).

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