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In the statement, tick 'T' against thos...

In the statement, tick 'T' against those which are true, and 'F' against those which are false.
(T/F)Unwanted or unpleasant sound is termed as music. (T/F)

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In the statement, tick 'T' against those which are true, and 'F' against those which are false. Sound cannot travel in vacuum. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. If the amplitude of vibration is large, sound is feeble. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. For human ears, the audible range is 20 Hz to 20,000 Hz. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. The lower the frequency of vibration, the higher is the pitch. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. The number of oscillations per second of a vibrating object is called its time period. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. Noise pollution may cause partial hearing impairment. (T/F)

Write T against true and F against false in the statements. A charged glass rod attracts a charged plastic straw. (T/F)

State true (T) or false (F).

Write T against true and F against false in the statements. Like charges attract each other. (T/F)

Mark 'T' if the statement is true and 'F' if it is false: Nitric acid turns red litmus blue. (T/F)

MBD -HARYANA BOARD-SOUND-EXAMPLE
  1. In the statement, tick 'T' against those which are true, and 'F' agai...

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  2. Answer true or false The lower, the frequency of vibrations, the high...

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  3. In the statement, tick 'T' against those which are true, and 'F' agai...

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  4. In the statement, tick 'T' against those which are true, and 'F' agai...

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  5. Fill in the blanks with suitable word Time taken by an object to com...

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  6. Fill in the blanks with suitable word Loudness is determined by the...

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  7. Fill in the blanks with suitable word The unit of frequency is

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  8. Fill in the blanks with suitable word Unwanted sound is called

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  9. Fill in the blanks with suitable word Shrillness of a sound is deter...

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  10. A pendulum oscillates 40 times in 4 seconds. Find its time period and ...

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  11. The sound from a mosquito is produced when it vibrates its wings at an...

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  12. Identify the part which vibrates to produce soud in following instrume...

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  13. What is the difference between noise and music? Can music become noise...

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  14. List sources of noise pollution in your surroundings.

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  15. Explain in what way noise pollution is harmful to humans.

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  16. Your parents are going to buy a house. They have been offered one on t...

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  17. Sketch larynx and explain its function in your own words.

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  18. Lightning and thunder take place in the sky at the same time and at th...

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  19. The unit of frequency is

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  20. The intensity of disagreeable sound for human ear is:

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