Physics ICS Part 1 Chapter 8 Online Test With Answers

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Physics ICS Part 1 Chapter 8 Online Test

Sr. # Questions Answers Choice
1 A bat finding its correct location by sending Matter waves Ultrasonic waves Infrasonic waves electromagnetic waves
2 The state of human blood flow can be found by using. Newton's formula of speed of sound Interference of sound Phenomena of beats Doppler's effect of sound
3 The waves used in radar speed trap are <u>Longitudinal</u> Sound wave Micro waves Matter waves
4 The speed of stars and galaxies can be calculated by Compton effect Stefan's law Doppler's effect Pascal's law
5 Radar system is an application of. Chemical effect Electric effect Magnetic effect Doppler's effect
6 Star moving towards the earth show Red shift Blue shift Green shift Yellow shift
7 In sonar we use Sound waves Ultrasound waves Microwaves Radio waves
8 The apparent change in the pitch of sound due to relative motion is called. Carnot theorem Interference Doppler effect Beats
9 Stars moving away from Earth show a Green shift Blue shift Red shift Yellow shift
10 The pitch of sound deepens upon Intensity of sound Loudness of sound Wavelength of sound Frequency of sound
11 Wavelength of a wave for closed pipe having length 'l' in the fundamental mode is. 2 l 1/2 4 l l
12 The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is. 4 l 2l l 1/4 l
13 A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is 4 m 2 m 3 m 1 m
14 A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is. 15 Hz 30 HZ 60 Hz 480 Hz
15 Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will Decrease Unchanged Half Increases
16 If a stretched string 4 m long and it has 4 loops of stationary waves, then the wave length is. 1m 2 m 3 m 4 m
17 A set of frequencies which are multiples of the fundamental frequency are called. Doppler effect Nodal frequencies Beat frequencies Hamonics
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