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

00:00
Question # 1

Value of K depends upon

Question # 2

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

Question # 3

Flux passing through a closed surface does not depend upon

Question # 4

The reciprocal of resistance is known as .

Question # 5

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 # 6

Electric force as compared to gravitational force is.

Question # 7

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

Question # 8

SI Unit of EMF is.

Question # 9

The potential gradient is a.

Question # 10

mho m-1 is the SI unit of.

Question # 11

Range of electric force is.

Question # 12

1.6 x 10-19  J is always equal to.

Question # 13

A uniform electric field is represented by a set of lines which are.

Question # 14

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 

Question # 15

The electric resistance of a metal

Question # 16

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 # 17

Concept of field lines of force was introduced 

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9th Chapter

11th Class Physics Chapter 9 Test

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Sr.# Question Answer
1

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.

A.

Decrease to half its original value

B.

Increase to twice the original value

C.

Increase four times to its original value

D.

Decreases to one quarer of its original value

2

Electric force as compared to gravitational force is.

A.

Very weak

B.

Very strong

C.

Moderately weak

D.

Infinite

3

If air is replaced  by any other dielectic medium the fore of attraction or repulsion between two charges.

A.

Decreases

B.

Increases

C.

Vanishes

D.

Remain same

4

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

A.

Negative

B.

Positive

C.

Zero

D.

Infinite

5

The sum of currents in various resistors meeting at a point of the circuit.

A.

Equals to the total current

B.

Exceed the totla current

C.

Less than total current

D.

None of above

6

For apositive charge electic field lines are directed.

A.

Towards charge

B.

Away from charge

C.

Botha a and b

D.

None

7

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

A.

0.1 V

B.

8 V

C.

2 V

D.

0.5 V

8

Unti of electric intensity is.

A.

Vm-1

B.

NC-1

C.

Am-1

D.

Botha a and b

9

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

A.

Different

B.

Same

C.

Zero

D.

Negative

10

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

A.

Mass

B.

Charge

C.

Momentum

D.

Energy

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