JEE Advanced 2021 Full Test 5 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 : 2 of 54

Marks: +1, -0

A soap film is formed on a vertical equilateral triangular frame ABC. Side BC can move vertically always remaining horizontal. If m is the mass of rod BC, and T is surface tension of soap film. Mark the correct statement(s):-

The length of BC in equilibrium is
mg
2T
The length of BC in equilibrium is
mg
T
The time period of small oscillations about the equilibrium position is π√
√3m
T
The time period of small oscillations about the equilibrium position is π√
m
√3T

Validate

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