More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Physics Fsc Part 1 Chapter 8 Online Test MCQs With Answers
Question # 1
In which medium the speed of sound is greater.
Choose an answer
Oxygen
Air
Water
copper
Previous
Skip
Next
Question # 2
On loading the prong of a tuning fork with wax, the frequency of sound.
Choose an answer
Increases
Decreases
Remains same
First increases then decrease
Previous
Skip
Next
Question # 3
The distance between two consecutive crest is called.
Choose an answer
Displacement
Amplitude
Wave front
Wavelength
Previous
Skip
Next
Question # 4
Stars moving away from Earth show a
Choose an answer
Green shift
Blue shift
Red shift
Yellow shift
Previous
Skip
Next
Question # 5
In stationary waves the points which always remain at rest are.
Choose an answer
Nodes
Antinodes
Crest
Trough
Previous
Skip
Next
Question # 6
The process followed by Newton for the determination of speed of sound in air is
Choose an answer
Adiabatic
Isothermal
Isobaric
Isochoric
Previous
Skip
Next
Question # 7
A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is
Choose an answer
4 m
2 m
3 m
1 m
Previous
Skip
Next
Question # 8
the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to
Choose an answer
f/v
Vf
V/f
f/V2
Previous
Skip
Next
Question # 9
In transverse waves the particles of medium vibrate
Choose an answer
Along the direction of wave
Opposite to direction of wave
Perpendicular to direction of wave
Slowly
Previous
Skip
Next
Question # 10
In stationary waves, the particle velocity at nodes is
Choose an answer
Minimum
Maximum
Zero
Constant
Previous
Skip
Next
Question # 11
When the amplitude of a wave become double, its energy becomes
Choose an answer
One half
Two times
Three times
Four times
Previous
Skip
Next
Question # 12
In stationary waves, the velocity of particle at the node is.
Choose an answer
Maximum
Infinite
Zero
Varible
Previous
Skip
Next
Question # 13
If the pressure of a gas is doubled, then speed of sound is.
Choose an answer
Doubled
Become half
Not affected
Increases by four times
Previous
Skip
Next
Question # 14
Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.
Choose an answer
Double
Half
Four times
Remains same
Previous
Skip
Next
Question # 15
The experimental value for the velocity of sound in air is
Choose an answer
233 m-sec
-1
333 m-sec
-1
433 m-sec
-1
533 m-sec
-1
Previous
Skip
Next
Question # 16
In sonar we use
Choose an answer
Sound waves
Ultrasound waves
Microwaves
Radio waves
Previous
Skip
Next
Question # 17
Speed of sound in vacuum is
Choose an answer
280 ms-1
332 ms-1
333 ms-1
Zero ms-1
Previous
Skip
Next
Question # 18
The mechanism of transports energy of all the waves is
Choose an answer
Different
Same
Complicated
Easy
Previous
Skip
Next
Question # 19
Waves transport energy without transporting
Choose an answer
Matter
Force
Momentum
All of these
Previous
Skip
Next
Question # 20
Frequency range of hearing of cats is.
Choose an answer
20-20000 Hz
10- 10000 Hz
60-20000 Hz
60-70000 Hz
Previous
Skip
Next
Question # 21
Sound travel faster in
Choose an answer
CO2
H2
O2
He
Previous
Skip
Next
Question # 22
10 waves pass through a point in 2 seconds with speed 10 ms-1 the frequency of wave will be
Choose an answer
1 Hz
2 Hz
5 Hz
10 Hz
Previous
Skip
Next
Question # 23
If 20 waves passes through he medium in 2 sec of 10 ms-1 then he wavelength is.
Choose an answer
200 m
2 m
1 m
0.5 m
Previous
Skip
Next
Question # 24
Sound waves are
Choose an answer
Electromagnetic waves
Transverse waves
Compressional waves
Matter waves
Previous
Skip
Next
Back