Edumarz

Menu

Tag: Class 9

Q7. When and where did the incident with the snake take place?

Class 9 English
Read More

Q6. Who narrated his encounter with a snake? To whom? Why did he narrate the incident?

Class 9 English
Read More

Q5. Write short paragraphs on each of these to get your answer.

Class 9 English
Read More

Q4. “I looked into the mirror and smiled,” says the doctor. A little later he says, “I forgot my danger and smiled feebly at myself.” What is the doctor’s opinion about himself when (i) he first smiles, and (ii) he smiles again? In what way do his thoughts change in between, and why?

Class 9 English
Read More

Q3. What two “important” and “earth¬shaking” decisions did the doctor take while he was looking into the mirror?

Class 9 English
Read More

Q2. “ The sound was a familiar one.” What sound did the doctor hear? What did he think it was? How many times did he hear it? (Find the places in the text.) When and why did the sounds stop?

Class 9 English
Read More

Write the summary of “The snake and the mirror.”

Class 9 English
Read More

Two children are at opposite ends of an aluminium rod. One strikes the end of the rod with a stone. Find the ratio of times taken by the sound wave in air and in aluminium to reach the second child.

Class 9 Physics Sound
Read More

A person has a hearing range from 20 Hz to 20 kHz. What are the typical wavelengths of sound waves in air corresponding to these two frequencies? Take the speed of sound in air as 344 m s–1?

Class 9 Physics Sound
Read More

Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?

Class 9 Physics Sound
Read More

Which characteristic of the sound helps you to identify your friend by his voice while sitting with others in a dark room?

Class 9 Physics Sound
Read More

Why is sound wave called a longitudinal wave?

Class 9 Physics Sound
Read More
Loading...
Load more