A block is connected to a spring in an elevator. Elongation in spring is x_{1}=4 \\sqrt{2} {mm} and {x}_{2}=3 \\sqrt{2} {mm} , when it moves up and down with constant acceleration, respectively. Then,

acceleration of elevator is {{g}}/{7} {m} \/ {s}^{2}

acceleration of elevator is {{g}}/{3} {m} \/ {s}^{2}

if same elevator moves horizontally with same acceleration, then elongation will be 5 {mm}

if same elevator moves horizontally with same acceleration, then elongation will be 10 {mm}

JEE Advanced 2021 Full Test 4 Paper 2

PART – I

Physics

SECTION – A (One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and (D). ONE OR MORE THAN ONE of these four options is(are) correct.

Question : 5 of 54

Marks: +1, -0

A block is connected to a spring in an elevator. Elongation in spring is x1=4√2mm and x2=3√2mm , when it moves up and down with constant acceleration, respectively. Then,

acceleration of elevator is
g
7
m∕s2
acceleration of elevator is
g
3
m∕s2
if same elevator moves horizontally with same acceleration, then elongation will be 5mm
if same elevator moves horizontally with same acceleration, then elongation will be 10mm

Validate

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