Laws of Motion (JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics): Questions 1 - 2 of 15

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Question number: 1

» Laws of Motion » Equilibrium of Concurrent Forces

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Appeared in Year: 2014

MCQ▾

Question

A wire, which passes through the hole is a small bead, is bent in the form of quarter of a circle. The wire is fixed vertically on ground as shown in the figure. The bead is released from near the top of the wire and it slides along the wire without friction. As the bead moves from to , the force it applied on the wire is:

A wire bent in form of ¼ of circle

A Wire Bent in Form of ¼ of Circle

In figure a wire bent in form of ¼ of circle is shown.

Choices

Choice (4) Response

a.

radially outward in initially and radially inwards later.

b.

always radially outwards

c.

always radially inwards

d.

radially inward initially and radially outward later

Question number: 2

» Laws of Motion » Equilibrium of Concurrent Forces

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Appeared in Year: 2015

MCQ▾

Question

A large spherical mass is fixed at one position and two identical point masses are kept on a line passing through the centre of (see figure). The point masses are connected by a rigid massless rod of length and this assembly is free to move along the line connecting them. All three masses interact only through their mutual gravitational interaction. When the point mass nearer to is at a distance from , the tension in the rod is zero for . The value of is:

 Three masses are placed on a line

Three Masses Are Placed on a Line

A large spherical mass M is fixed at one position and two identical point masses m are kept on a line passing through the centre of M.

Choices

Choice (4) Response

a.

7

b.

5

c.

11

d.

9

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