Physics  >  Topic wise Tests for IIT JAM Physics  >  Circular Motion MCQ Level - 1 Download as PDF

Circular Motion MCQ Level - 1


Test Description

10 Questions MCQ Test Topic wise Tests for IIT JAM Physics | Circular Motion MCQ Level - 1

Circular Motion MCQ Level - 1 for Physics 2022 is part of Topic wise Tests for IIT JAM Physics preparation. The Circular Motion MCQ Level - 1 questions and answers have been prepared according to the Physics exam syllabus.The Circular Motion MCQ Level - 1 MCQs are made for Physics 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Circular Motion MCQ Level - 1 below.
Solutions of Circular Motion MCQ Level - 1 questions in English are available as part of our Topic wise Tests for IIT JAM Physics for Physics & Circular Motion MCQ Level - 1 solutions in Hindi for Topic wise Tests for IIT JAM Physics course. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free. Attempt Circular Motion MCQ Level - 1 | 10 questions in 30 minutes | Mock test for Physics preparation | Free important questions MCQ to study Topic wise Tests for IIT JAM Physics for Physics Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Circular Motion MCQ Level - 1 - Question 1

A stone tied to a string is rotated in a vertical plane. If mass of the stone is m, the length of the string is R and the linear speed of the stone is v  when the stone is at its lowest point, then the tension in the string at the lowest point will be :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 1

 (centripetal force at lowest point)

The correct answer is:  

Circular Motion MCQ Level - 1 - Question 2

A ring of radius R lies in vertical plane. A bead of mass m can move along the ring without friction. Initially the bead is at rest at the bottom most point on ring. The minimum constant horizontal speed v with which the ring must be pulled such that the bead completes the vertical circle :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 2

In the frame of ring (inertial w.r.t. earth), the initial velocity of the bead is v at the lowest position.

The condition for bead to complete the vertical circle is, its speed at top position

From conservation of energy  

Circular Motion MCQ Level - 1 - Question 3

When the road is dry and coefficient of friction is μ the maximum speed of a car in a circular path is 10ms–1. If the road becomes wet and coefficient of friction become μ/4, what is the maximum speed permitted?

Detailed Solution for Circular Motion MCQ Level - 1 - Question 3

The correct answer is: 5ms–1

Circular Motion MCQ Level - 1 - Question 4

A car of mass M is traveling on a horizontal circular path of radius r. At an instant its speed is v and tangential acceleration is :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 4

friction force on car 

which is greater than 

∴   it is not less than a/g for safe turn.

The correct answer is: The magnitude of frictional force on the car is greater than 

Circular Motion MCQ Level - 1 - Question 5

A body is tied up by a string of length l  and rotated in vertical circle at minimum speed. When it reaches at highest point string breaks and body moves on a parabolic path in presence of gravity according to figure. In the plane of point A, value of horizontal range AC will be :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 5


The correct answer is: 

Circular Motion MCQ Level - 1 - Question 6

The maximum velocity at the lowest point, so that the string just slack at the highest point in a vertical circle of radius l.

Detailed Solution for Circular Motion MCQ Level - 1 - Question 6


The correct answer is: 

Circular Motion MCQ Level - 1 - Question 7

A section of fixed smooth circular track of radius R in vertical plane is shown in the figure. A block is released from position A and leaves the track at B. The radius of curvature of its trajectory when it just leaves the track at B is:

Detailed Solution for Circular Motion MCQ Level - 1 - Question 7

By energy conservation between A and B

Now, radius of curvature 

The correct answer is: R/2

Circular Motion MCQ Level - 1 - Question 8

A particle of mass m begins to slide down on a fixed smooth sphere from the top. What is its tangential acceleration when it breaks off the sphere?

Detailed Solution for Circular Motion MCQ Level - 1 - Question 8

At loose contact N = 0

from energy conservation

from (1) & (2)  

tangential acceleration 

The correct answer is:  

Circular Motion MCQ Level - 1 - Question 9

A particle is projected horizontally from the top of a tower with a velocity v0. If v  be its velocity at any instant, then from radius of curvature of the path of the particle at that instant is directly proportional to :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 9

As we know :

 (centripetal acceleration)

From figure : 

 

The correct answer is: v3

Circular Motion MCQ Level - 1 - Question 10

The breaking tension of a string is 10N. A particle of mass 0.1kg tied to it is rotated along a horizontal circle of radius 0.5metre. The maximum speed with which the particle can be rotated without breaking the string is :

Detailed Solution for Circular Motion MCQ Level - 1 - Question 10

 

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Circular Motion MCQ Level - 1 Page
In this test you can find the Exam questions for Circular Motion MCQ Level - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Circular Motion MCQ Level - 1, EduRev gives you an ample number of Online tests for practice