Effects of Noise Pollution

Q.

The number of oscillations or vibrations per second is called __ of the oscillation.

1. Pitch
2. Time Period
3. Wavelength

4. Frequency

Q.

The number of vibration made by the vibrating body in one second is called ___________.

Q.

What are the harmful effects of noise pollution on human health?

1. Lack of sleep

2. Hypertension

3. Imapairment of hearing

4. None of the above

Q. Which of the following is not an effect of noise pollution?

1. Hearing impairment
2. Hypertension
3. Lack of sleep
4. Enhanced concentration

Q.

A frequency of 1Hz corresponds to__________.

Q. Fast oscillations are called ___.

Q. Identify the sources of noise pollution.

1. Loud speakers
2. Crackers
3. Soundproof walls
4. Construction sites
5. Heavy machines
6. Silencers
7. Traffic
8. Industries

Q. Frequency of oscillation remains same in damped oscillations?

Q.

What can be the harmful effects of noise pollution?

1. Lack of sleep

2. Imapairment of hearing

3. All of these

4. Hypertension

Q. A big explosion on the Moon cannot be heard on the Earth. Which of the following statement is the correct explanation for this?

1. Sound waves are absorbed in the earth’s atmosphere
2. The explosion produces high frequency sound waves which are inaudible
3. Sound waves require a material medium for propagation
4. Sound wave are absorbed in the moon’s atmosphere

Q.

If T and n are the Time period and frequency of a simple pendulum, which of the following notations are correct?

1. $n\times T=1$

2. $\frac{n}{T}=1$

3. $n^2\times T=1$

4. $n\times T^2=1$

Q. Which of the following are harmful effects caused due to noise pollution?
A. Insomnia
B. Hypertension
C. Hearing impairment
D. Malaria

1. A and B only
2. C and A only
3. B and C only
4. A, B and C