Blue light has the highest energy among the options given. Light energy is directly proportional to its frequency and inversely proportional to its wavelength. Blue light has a shorter wavelength and higher frequency compared to green, red, and yellow light, ...
Tiwari Academy Discussion Latest Questions
Plants absorb intensely blue and red light. These wavelengths are crucial for photosynthesis, as they are efficiently absorbed by chlorophyll, the pigment responsible for capturing light energy. This absorption drives the process of converting light energy into chemical energy used ...
Jena glass can scatter ultraviolet rays. It contains compounds like cerium oxide, which absorb and scatter UV radiation, making it useful in applications requiring UV protection, such as in optical lenses and scientific instruments.
Stars twinkle due to atmospheric refraction. As starlight passes through Earth’s atmosphere, it encounters variations in temperature and density, causing the light to bend slightly. This bending results in the apparent twinkling or shimmering of stars when viewed from the ...
In fiber optic communication, the signal flows in the form of light waves. Optical fibers transmit data using pulses of light that travel along the fiber’s core, which is typically made of glass or plastic. These light waves carry digital ...
Before setting, the Sun appears elliptical due to the atmospheric refraction. When close to the horizon, the Sun’s light passes through a thicker layer of Earth’s atmosphere, causing it to bend slightly. This refraction effect makes the Sun appear distorted ...
A concave lens is used to correct nearsightedness, also known as myopia. Nearsightedness occurs when the eye focuses light in front of the retina instead of directly on it. A concave lens diverges incoming light rays, shifting the focal point ...
The telescope was invented by Galileo. He constructed his first telescope in 1609, significantly improving upon existing designs to magnify distant objects. Galileo’s observations revolutionized astronomy, leading to discoveries such as the moons of Jupiter and the phases of Venus, ...
A lunar eclipse occurs on a full moon day when the Earth passes between the Sun and the Moon. This alignment causes the Earth’s shadow to fall on the Moon, darkening it partially or completely depending on whether it is ...
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.