A solar eclipse occurs on a new moon day (Pratipada). This is when the Moon comes between the Sun and Earth, casting its shadow on Earth’s surface and causing a temporary obscuration of the Sun’s light.
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The bending of light from the core (edge) of a barrier is called diffraction. This phenomenon occurs when a wave encounters an obstacle or a slit that is comparable in size to its wavelength, causing the wave to bend around ...
With an increase in the temperature of the medium, the speed of light generally decreases. This is because higher temperatures increase the density of the medium’s molecules, which leads to more frequent interactions and absorptions of photons, temporarily slowing down ...
The maximum duration of a total solar eclipse, when the Moon completely covers the Sun’s disk, can last up to several minutes. The exact duration depends on the geometry of the Sun, Moon, and Earth during the eclipse event.
Sonography is a biological method that uses ultrasonic sound. It involves the use of high-frequency sound waves to create images of the inside of the body. These sound waves, beyond the range of human hearing, are transmitted into the body ...
The standard sound level for humans is 60 dB. This level represents the threshold of normal conversation and is commonly used as a reference point for measuring other sound levels. Sound levels above 85 dB can cause hearing damage with ...
Doppler effect is related to sound. It describes the change in frequency of sound waves due to relative motion between the source and observer. Approaching objects increase the frequency (higher pitch), while receding objects decrease it (lower pitch), affecting how ...
When we hear people talking in the same room without seeing them, it is due to diffraction. Sound waves bend around obstacles and spread out after passing through openings, allowing us to hear voices even when the source is not ...
Tuning a radio station is an example of resonance. By turning the knob, the radio’s circuit is adjusted to resonate at the specific frequency of the desired station. This resonance amplifies the signal from that station, allowing clear reception of ...
Women’s voices are thinner (shrill) compared to men’s voices primarily because the frequency is higher. Higher frequency results in a higher pitch, characteristic of women’s voices. This is due to women having shorter and thinner vocal cords that vibrate at ...