GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
3. Do not refresh or back page.
4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
The periodic vibrations of sound produces ___________________ .
Music
Wave
Frequency
Amplitude
2
Vibrating bodies produce _________ .
Sound
Heat
Light
None of these
3
In order to reduce the loudness of a sound we have to
Decrease its frequency of vibration of the sound.
Increase its frequency of ibration of the sound.
Decrease its amplitude or vibration of the sound
Increase its amlitude of vabration of the sound
4
Sound cannot travel through
Solids
Liquids
Gases
Vacuum
5
A form of energy which is caused by vibrations is known as ________________
heat energy
sound energy
light energy
chemical energy
6
Sound cannot travel in __________________.
Solid
Liquid
Gas
Vaccum
7
Which of the following are correct :
(a) Birds have a ring of cartilage, called syrinx, in their wind pipe.
(b) Birds make their characteristic sounds by vibrating their wings rapidly.
Only (a) is correct.
Only (b) is correct.
Both (a) and (b) is correct.
None of these.
8
(a) Human being produce sound with the help of vocal cords.
(b) Human being produce sound with the help of syrinx.
Both (a) and (b) are correct.
9
Vocal cords occur in ____________________
Pharynx
Glottis
Bronchial
Larynx
10
(a) Insects like mosquitoes and bees, make their characteristic sounds by vibrating their wings rapidly.
(b) Insects like mosquitoes and bees, produce sound with the help of vocal cords.
(c) Human being produce sound with the help of vocal cords.
Only (a) and (b) are correct.
Only (b) are (c) are correct.
Only (a) and (c) are correct.