First Year Physics Chapter 9 Online MCQ Test for 1st Year Physics Chapter 9 (Physical Optics)


This online test contains MCQs about following topics:

Wave Fronts - Huygen's principle - Interferance of Light Waves - Young's Double slit Experiment - Interference in Thin Films - Newton's Rings - Michelson's Interferometer - Diffraction of Light - Diffraction due to a Narrow slit - Diffraction Grating - Diffraction of X-Rays by Crystals - Polarization

FSC Part 1 Physics Ch. 9 Test

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MCQ's Test For Chapter 9 "Physics Fsc Part 1 Chapter 9 Online Test"

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  • Total Questions17

  • Time Allowed20

Physics Fsc Part 1 Chapter 9 Online Test

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Question # 1

On moving a charge of 20 Coulomb by 2 cm. 2 J of work is done, then the potential differecne between the points is.

Question # 2

The electric resistance of a metal

Question # 3

The electric field created bypositive point charge is.

Question # 4

Gaussian surface is

Question # 5

Concept of field lines of force was introduced 

Question # 6

Algebraic sum of current meeting at a point is zero is a statement of.

Question # 7

A wheatstone bridge consts of ......resistors.

Question # 8

If the vector area is parallel to the field lies, then electric flux is.

Question # 9

When a dielectric material is placed in an electric field it

Question # 10

The redius of curvature of the path of a charged particle in a uniform magnetic field is directly proportiional to.

Question # 11

Electric lines of force are.

Question # 12

The best instrument used for teh acccurate measurement of e.m.g. of a cell is.

Question # 13

To eliminate stray electric field interference, circuits of sensitive electonic devices are enclosed in.

Question # 14

Electric flux is a

Question # 15

The potential gradient is a.

Question # 16

Nautral zone in electric field of two similar charge is region where.

Question # 17

Whenever current is drawn from a cell, its terminal potential differecne and emf become.

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9th Chapter

11th Class Physics Chapter 9 Test

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Sr.# Question Answer
1

In wheatstone bridge all the four arms have equal resistanc eR. If the resistance of galvanometer arm is also R the equivalent resistance of the combination 

A.

R

B.

R/4

C.

R/2

D.

2R

2

Electric bulb does not obey Ohm's law becasue 

A.

Temperature changes

B.

Resistance changes

C.

Heat is prodcued

D.

All

3

The SI unit of conductance is.

A.

mho -meter

B.

ohm

C.

mho

D.

moh meter

4

Range of electric force is.

A.

Small

B.

Large

C.

Medium

5

Electric lines of force are.

A.

Real

B.

Imaginary

C.

Complex

D.

None of these

6

The potential gradient is a.

A.

Scalar

B.

Power

C.

Vector

D.

Energy

7

An electric field can deflect.

A.

Charge dparticles

B.

Neutrons

C.

X-rays

D.

Beta Rays

8

The electric resistance of a metal

A.

Increase with the increase of temperature 

B.

Decrease with increase of temperature

C.

Indpendent of temperature

D.

Convert Mechanicla energy into heat energy

9

Value of dielectric consgtant  e r for water is

A.

25

B.

78.5

C.

2.1

D.

3.40

10

The negative of potential gradient is.

A.

Potential energy

B.

Electric field intensity

C.

Elelctromotive force

D.

Electrostataic force

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