JEE Advanced 2020 Concept Recapitulation Test 1 Paper 1

Question : 6 of 54

Marks: +1, -0

A particle of mass m is attached to one end of the light inextensible string and other end of the string is fixed in vertical plane as shown. Now particle is given horizontal velocity u=√‌

gl, then which of the following statement\/sis/are correct.

The string makes angle with the downward vertical is 60∘ when acceleration of the particle is horizontal.
The tension in string is 2mg when acceleration of the particle is horizontal.
The speed of the particle is √‌
3
2
gl when acceleration of the particle is horizontal
The particle will not complete the circle.

Validate

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