Convex mirrors are used in automobiles to see the rear side traffic. They provide a wider field of view compared to plane mirrors, allowing drivers to see more area behind them. The convex shape makes objects appear smaller but covers ...
Tiwari Academy Discussion Latest Questions
When a convex lens is immersed in water, its focal length decreases. This is because the refractive index of water is higher than that of air, causing light to bend more sharply, effectively decreasing the lens’s ability to converge light ...
The unit of the power of the lens is diopter. It measures the refractive power of a lens, indicating how strongly the lens converges or diverges light. It is defined as the reciprocal of the focal length in meters.
When a ray of light travels from a rarer medium to a denser medium, it gets bent towards the normal. This bending occurs because the light slows down in the denser medium, causing the direction of the ray to shift ...
A spherical air bubble embedded in glass behaves optically like a converging lens. Due to the curvature of the bubble’s surfaces, it causes light rays passing through it to converge, similar to how a convex lens bends light towards a ...
Diamond appears shiny primarily due to its high refractive index and strong dispersion of light. When light enters a diamond, it undergoes multiple internal reflections at different angles, enhancing its brilliance and sparkle. This phenomenon is known as diamond’s “fire” ...
When light transitions from a denser medium to a rarer medium, such as from glass to air, it can internally reflect. This phenomenon occurs due to the change in the refractive index at the interface. Total internal reflection is crucial ...
When a compact disc (CD) is viewed in sunlight, the colors similar to those of a rainbow are seen due to the phenomena of reflection and diffraction. The CD’s surface consists of closely spaced tracks that act as a diffraction ...
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 coin placed in a vessel filled with water appears slightly raised due to the refraction of light. When light passes from water into air (or vice versa), it changes direction, making the coin appear higher than its actual position ...