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


ICS Part 1 Physics
Chapter 9 Test

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

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Physics ICS Part 1 Chapter 9 Online Test

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Question # 1

Concept of field lines of force was introduced 

Question # 2

If a resistor is traversed in the direction of current, the potential change is.

Question # 3

SI Unit of EMF is.

Question # 4

The Kirchhoff's 2nd rule is the manifestation of law of conservation of.

Question # 5

The vlaue of ralative parmittivity e r. for various dielectric is always.

Question # 6

Two pont charges  A and B are separated by 10 m. If the distance between tehm is reduced to 5 m. the force exerted on each.

Question # 7

Flux passing through a closed surface does not depend upon

Question # 8

Gaussian surface is

Question # 9

If the source of e.m.f. is traversed from negative to positive terminal, the potential change is.

Question # 10

The current through a conductor is 3.0 a when it is attached across a pontntial difference of 6.0 V. How much power is used.

Question # 11

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

Question # 12

The electric constnat of rubber is.

Question # 13

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 # 14

Electric flux is a

Question # 15

The potential gradient is a.

Question # 16

The electric current may be caused due to.

Question # 17

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 

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9th Chapter

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Sr.# Question Answer
1

The Kirchhoff's first rule is the manifestation of law of conservation of.

A.

Mass

B.

Charge

C.

Momentum

D.

Energy

2

The relative permittivity of free speace has the value equal to.

A.

1.0 

B.

1.006

C.

78.5

D.

2.1

3

The electric current may be caused due to.

A.

Electrons

B.

Negative ions

C.

Positive Ions

D.

All

4

A positive charge is placed at the center of sphere of radius r, then the electric flux depends upon 

A.

The radius of the sphere

B.

Quantity of charge

C.

The intensity of the electric field

D.

All of the above

5

Electron -vold is a unit of.

B.

Energy

C.

Potential

D.

Capacitance

6

The SI unit of conductance is.

A.

mho -meter

B.

ohm

C.

mho

D.

moh meter

7

Maximum power is delivered to a load when internal resistance of soruce is.

A.

Less than load

B.

Equal the load resistance

C.

Greater than the load resistance

D.

Does not depend on load resistance

8

The reciprocal of resistance is known as .

A.

Conductance

B.

Reactance

C.

Conductivity

D.

Resistivity

9

The electric field present inside ahollow charged sphere is.

A.

Zero

B.

Maximum

C.

Constant

D.

Variable

10

Unti of electric intensity is.

A.

Vm-1

B.

NC-1

C.

Am-1

D.

Botha a and b

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