Category: Physics

What kind of lens can be used to produce a real image a virtual image? convex lens In what kind of surfaces can we see a clear reflected image of an object? Answer. we should use a smooth surface like mirror . as mirror surface is smooth there is no roughness in the surface and […]

Is 0 a subspace of R3? Therefore, S is a SUBSPACE of R3. In fact, in general, the plane ax + by + cz = 0 is a subspace of R3 if abc = 0. In other words, to test if a set is a subspace of a Vector Space, you only need to check […]

Can two eclipses be visible in the same area? Most of the time you will never see both the sun and the eclipsed moon at the same time and it’s just a very VERY rare phenomenon and is only seen in specific places. Of course a planet with multiple moons can have both a solar […]

What are the two main processes of the oxygen carbon cycle? In the natural carbon cycle, there are two main processes which occur: photosynthesis and metabolism. During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. What is the exchange pool for the carbon cycle […]

What would most likely happen to New York State Summer and winter temperatures? What would most likely happen to New York State’s summer and winter temperatures if the tilt of Earth’s axis increased from 23.5° to 30°? The summers would become cooler and the winters would become warmer. The summers would become warmer and the […]

What is the importance of alloys? Almost all metals are used as alloys—that is, mixtures of several elements—because these have properties superior to pure metals. Alloying is done for many reasons, typically to increase strength, increase corrosion resistance, or reduce costs. What are two uses of alloys? Uses of alloys Alloy Composition Uses Magnalium Aluminium […]

Can green algae do cellular respiration? Algae perform cellular respiration which uses carbon dioxide. This would capture CO2, decreasing the amount in the atmosphere. Where is algae mostly found? Algae are aquatic, plant-like organisms. They encompass a variety of simple structures, from single-celled phytoplankton floating in the water, to large seaweeds (macroalgae) attached to the […]

Does the length of an antenna matter? So the answer is yes, size does matter, but bigger isn’t always better. It all depends on what your transmitting and receiving frequencies are. Theoretically, a longer antenna will have a greater range, but it is far more important for optimal radio performance that the length of the […]

What is the nature of the image formed by the plane mirror Class 8? Summary. A plane mirror always forms a virtual image (behind the mirror). The image and object are the same distance from a flat mirror, the image size is the same as the object size, and the image is upright. What is […]

Does light travel faster in water or in a vacuum? Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. How do you find effective index? the effective mode index can be computed by a simple equation in which we divide propagation […]