Reason

Why does sawing in wood produce a coarse sound when sawing slowly and a sharp sound when sawing quickly? Answer: When sawing through wood, a coarser sound is heard if the saw is moved slowly because the frequency is lower. But if the saw is run quickly i.e. fast, the frequency increases and the sharp […]

Why is the sound produced at one end of a hollow iron pipe heard twice at the other end? Answer: The sound produced by striking one end of a hollow iron pipe with a hammer travels through the iron of the pipe and through the air inside the pipe. The speed ​​of sound is different

Why cannot a sound be heard on the moon? Answer: While standing side by side on the lunar surface, radio assistance is required. Moon has no atmosphere. Since sound needs a physical medium for propagation, no sound can be heard even if you stand side by side on the moon. Hence, the help of radio

Why does the sound of explosions on the Sun or Moon not reach the Earth? Answer: The sound produced by an explosion on the Sun or the Moon cannot be heard on Earth. Sound propagation requires a physical medium. Sound cannot pass through a vacuum. Most spaces are zero for the distance between the Sun

Why the sound of the sun does not reach the earth? The light from the sun or the moon reaches the earth, but the sound does not. Since light is an electromagnetic wave, no inert medium is absolutely necessary for the propagation of light. Light can also travel through a vacuum. So even though most

Why does the filament of a light bulb glow but the connecting wires do not? Answer: Two wires do not emit light even though the same current flows in the two thick wires connecting the filaments in the electric lamp. Thick wires connecting the filaments have shorter lengths and relatively larger cross-sections. So their resistance

Answer: The buzzing sound of a mosquito is sharper than the roar of a tiger because the frequency of the sound produced by the vibration of the mosquito’s wings is much higher than the frequency of the tiger’s roar.

Why is the voice of children and women sharper than the voice of men? Answer: Children’s and women’s voices are sharper than men’s voices. The human throat has two membranes called vocal cords. As a result of their vibration, the sound comes out of the throat. Male vocal cords become stronger with age. As a

Why does the sound of water change as a bucket is filling from empty to full? If you keep an empty bucket under the faucet and fill it with water, you can hear a loud sound at first, but the sound gets louder as the bucket fills up. Answer: When an empty bucket is placed

The sound of the distant train can be heard on the line, but if you take your ear off the line, why can’t the sound be heard? Answer: If you listen to the railway line, you can hear the sound of distant trains. But if you take your ear off the line, you can no