1

JEE Main 2021 (Online) 16th March Morning Shift

MCQ (Single Correct Answer)

+4

-1

A block of 200 g mass moves with a uniform speed in a horizontal circular groove, with vertical side walls of radius 20 cm. If the block takes 40 s to complete one round, the normal force by the side walls of the groove is :

2

JEE Main 2021 (Online) 26th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

A particle is moving with uniform speed along the circumference of a circle of radius R under the action of a central fictitious force F which is inversely proportional to R

^{3}. Its time period of revolution will be given by :3

JEE Main 2020 (Online) 6th September Morning Slot

MCQ (Single Correct Answer)

+4

-1

A clock has a continuously moving second's hand of 0.1 m length. The average acceleration of the
tip of the hand (in units of ms

^{–2}) is of the order of :4

JEE Main 2020 (Online) 2nd September Morning Slot

MCQ (Single Correct Answer)

+4

-1

A bead of mass m stays at point P(a, b) on a
wire bent in the shape of a parabola y = 4Cx

^{2}and rotating with angular speed $$\omega $$ (see figure). The value of $$\omega $$ is (neglect friction) :Questions Asked from Circular Motion (MCQ (Single Correct Answer))

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