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Exam Details

Physics (PH) 2009

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Questions 60
Duration 180 mins
Package Physics (PH) - Previous Year Papers

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Showing all 60 questions in this paper.

Subject distribution

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Topic distribution

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Subtopic distribution

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Difficulty distribution

Easy 60 100%

Question type distribution

Multiple Choices 60 100%

Instructions

Physics (PH) 2009 – Instructions
  • Total number of questions: 60
  • 20 questions carry one mark each
  • 40 questions carry two marks each
  • Negative marking: 1/3 of the marks allotted to the question
  • Use of calculator is allowed
  • This is a proctored examination
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  • After three warnings, the examination window will close automatically

Syllabus

Full Syllabus

Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2009 · Unclassified
Physics (PH) 2009
Q.1 – Q.20 carry one mark each.

The value of the contour integral, ∮ r × dθ, for a circle C of radius r with center at the origin is

A
2πr
B
r²/2
C
πr²
D
r
2
2009 · Unclassified
Physics (PH) 2009

An electrostatic field E exists in a given region R. Choose the WRONG statement.

A
Circulation of E is zero
B
E can always be expressed as the gradient of a scalar field
C
The potential difference between any two arbitrary points in the region R is zero
D
The work done in a closed path lying entirely in R is zero
3
2009 · Unclassified
Physics (PH) 2009

The Lagrangian of a free particle in spherical polar co-ordinates is given by L = 1/2 m (ṙ2 + r2θ̇2 + r2φ̇2 sin2θ). The quantity that is conserved is

A
∂L/∂t
B
∂L/∂θ
C
∂L/∂φ
D
∂L/∂φ̇
4
2009 · Unclassified
Physics (PH) 2009

A conducting loop L of surface area S is moving with a velocity v in a magnetic field B(r,t) = B0r, B0 is a positive constant of suitable dimensions. The emf induced, Vemf, in the loop is given by

A
-∮ (∂B/∂t) ⋅ dS
B
-∮ (v × B) ⋅ dL
C
-∮ (v × B) ⋅ dS
D
-∮ (∂B/∂t) ⋅ dS + ∮ (v × B) ⋅ dL
5
2009 · Unclassified
Physics (PH) 2009

The eigenvalues of the matrix A = are

A
real and distinct
B
complex and distinct
C
complex and coinciding
D
real and coinciding
6
2009 · Unclassified
Physics (PH) 2009

σi (i = 1, 2, 3) represent the Pauli spin matrices. Which one of the following is NOT true?

A
σᵢσⱼ + σⱼσᵢ = 2δᵢⱼ
B
Tr (σᵢ) = 0
C
The eigenvalues of σᵢ are ±1
D
Det (σᵢ) = 1