Download App

Sound — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceSound2 Marks
Question
What is the frequency of a vibrating body whose time-period is $0.05$ second$?$
✓

Answer

Time Period given by the inverse of the frequency.
Time period $=\frac{1}{\text{frequency}}$
Or frequency $=\frac{1}{\text{Time period}}$
$\Rightarrow\text{frequency}=\frac{1}{0.05\text{ Sec}}=20\text{Hz}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "questions in short. [2 marks ]" from Sound→Sound — all question types→Science STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

Can we use our natural resources forever ?
→
Acid rain is caused by two major air pollutants. What are these two air pollutants?
→
Can you burn a piece of wood by bringing a lighted matchstick near it? Explain.
→
Write one advantage and one disadvantage of using clothes made from synthetic fibres.
→
Write the uses of acrylic fibres.
→
A gland $W$ is located just below the stomach in the human body. The gland $W$ secrets a hormone $X$. The deficiency of hormone $X$ in the body causes a disease $Y$ in which the blood sugar level of a person rises too much. The person having high blood sugar is called $Z.$ What are $W, X, Y$ and $Z?$
→
Choose the correct answer with justification. If we could remove all the constituent particles from a chair, what would happen?
(i) Nothing will change.
(ii) The chair will weigh less due to lost particles.
(iii) Nothing of the chair will remain.
→
Is cotton cloth biodegradable or non-biodegradable$?$
→
What is the legal age for the marriage of $(a)$ boys, and $(b)$ girls, in our country$?$
→
Based on the interaction, what are the two categories of forces?
→