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Adithya
Subject: Science
, asked on 12/3/18
Q. The frequency of a sound source is 600 Hz. The speed of sound in a medium is 330 m/s . What will be the linear distance between an adjacent crest and trough.
Answer
1
Keerthana Dileep
Subject: Science
, asked on 11/3/18
The successive crest and trough of a wave are 30cm apart.Find the wavelength and also the frequency of the wave if 10 crests and 10 troughs are produced in 2 secs.
Answer
1
Adithya
Subject: Science
, asked on 11/3/18
$Achildhearsanechofromacliff4secondsafterthesoundfromapowerfulcrackerisproduced.\mathit{H}\mathit{o}\mathit{w}\mathbf{}\mathit{f}\mathit{a}\mathit{r}\mathbf{}\mathit{a}\mathit{w}\mathit{a}\mathit{y}\mathbf{}\mathit{i}\mathit{s}\mathbf{}\mathit{t}\mathit{h}\mathit{e}\mathbf{}\mathit{c}\mathit{l}\mathit{i}\mathit{f}\mathit{f}\mathbf{}\mathit{f}\mathit{r}\mathit{o}\mathit{m}\mathbf{}\mathit{t}\mathit{h}\mathit{e}\mathbf{}\mathit{c}\mathit{h}\mathit{i}\mathit{l}\mathit{d}\mathbf{?}\mathbf{}\mathit{G}\mathit{i}\mathit{v}\mathit{e}\mathit{n}\mathbf{}\mathit{t}\mathit{h}\mathit{a}\mathit{t}\mathbf{}\mathit{t}\mathit{h}\mathit{e}\mathbf{}\mathit{s}\mathit{p}\mathit{e}\mathit{e}\mathit{d}\mathbf{}\mathit{o}\mathit{f}\mathbf{}\mathit{s}\mathit{o}\mathit{u}\mathit{n}\mathit{d}\mathbf{}\mathit{i}\mathit{s}\mathbf{}\mathbf{340}\mathbf{}\mathit{m}\mathbf{/}\mathit{s}\mathbf{.}$
Answer
1
Sapanpreet Singh
Subject: Science
, asked on 8/3/18
A ship on the surface of water sends ultrasonic waves and receive them back from a submarine inside the water after 5 seconds.If the speed of sound in water is 1400m/s, what is the distance of submarine from the ship?
Answer
1
Jerusha Pearly
Subject: Science
, asked on 8/3/18
Please answer these questions
Answer
1
Jerusha Pearly
Subject: Science
, asked on 8/3/18
Please answer these questions
Answer
1
Sneha Roychowdhury
Subject: Science
, asked on 7/3/18
Please answer q 25
Q25. Why do we prefer a longer string / slinky while performing the experiment to determine the speed of a pulse generated by it? Write one more precaution to be taken during this experiment.
Answer
1
Sneha Roychowdhury
Subject: Science
, asked on 7/3/18
Obtain the minimum distance of the obstacle from the source of sound to har distinct echoes ?
Answer
2
Sneha Roychowdhury
Subject: Science
, asked on 7/3/18
What are the factors on which the speed of sound wave depends ?
Answer
1
Monish
Subject: Science
, asked on 6/3/18
Dear Experts and Friends, Can you please help me solve the given numerical:
Q.
A construction worker's helmet slips and falls when he is 78.4 metres above the ground. He hears the sound of helmet hitting the ground after 4.23 seconds. Find the speed of sound in air if g = 9.8 m/s
^{2}
.
Thank You !
Answer
3
Kirtan Dua
Subject: Science
, asked on 5/3/18
Solve this:
Q.25. A student performs an experiment for verification of laws of reflection and records the angle of incidence and angle of reflection. He then proceeds to plot a graph between the angle of incidence and the angle of reflection. The graph is likely to be :
(a) straight line
(b) zig-lag line
(c) hyperbola
(d) parabola
Answer
1
Sahil.....
Subject: Science
, asked on 5/3/18
Solve this :
8 (a) How are the wavelenght and frequency of a sound wave related to its speed ?
Answer
1
Sahil.....
Subject: Science
, asked on 5/3/18
Solve this :
8. (a) How are the wavelength and frequency of a sound wave related to its speed?
b) A laboratory uses an ultrasonic scanner to trace tumour in tissue. The operation scanner is 4.2*10
^{6}
^{ }
Hz. Calculate the wavelength of sound in the tissue if the speed of the sound is 1700 m/s.
Answer
1
Bhavya Biswas
Subject: Science
, asked on 4/3/18
Sonic boom (3 marks)
Answer
2
Bhavya Biswas
Subject: Science
, asked on 4/3/18
Pls.. give the information below in short about propagation of sound.
Pls... Fast.. Meritnation experts..
Tomorrow is my exam.
Answer
1
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Q25. Why do we prefer a longer string / slinky while performing the experiment to determine the speed of a pulse generated by it? Write one more precaution to be taken during this experiment.

Dear Experts and Friends, Can you please help me solve the given numerical:

Q.A construction worker's helmet slips and falls when he is 78.4 metres above the ground. He hears the sound of helmet hitting the ground after 4.23 seconds. Find the speed of sound in air if g = 9.8 m/s^{2}.Thank You !

Q.25. A student performs an experiment for verification of laws of reflection and records the angle of incidence and angle of reflection. He then proceeds to plot a graph between the angle of incidence and the angle of reflection. The graph is likely to be :

(a) straight line

(b) zig-lag line

(c) hyperbola

(d) parabola

Solve this :8 (a) How are the wavelenght and frequency of a sound wave related to its speed ?

Solve this :8. (a) How are the wavelength and frequency of a sound wave related to its speed?

b) A laboratory uses an ultrasonic scanner to trace tumour in tissue. The operation scanner is 4.2*10

^{6}^{ }Hz. Calculate the wavelength of sound in the tissue if the speed of the sound is 1700 m/s.Pls... Fast.. Meritnation experts..

Tomorrow is my exam.