Why virtual image is always erect? Solution: Convex mirror always forms an erect and virtual image. The size of the image is smaller as compared to the object. So the answer to this is it is a convex mirror which always forms and erect and a virtual image. What are the properties of real image? […]
Why is a paperclip attracted to a magnet?
Why is a paperclip attracted to a magnet? Why do magnets attract paper clips? Magnets attract paper clips because magnets have a magnetic field, which creates a force, that pulls on other ferromagnetic materials. A paper clip is usually made of steel wire. Iron is a ferromagnetic material that is attracted by magnets. Can a […]
Why is the charge of the electron negative?
Why is the charge of the electron negative? Electric charge is a physical property of matter. It is created by an imbalance in a substance’s number of protons and electrons. The matter is positively charged if it contains more protons than electrons, and it is negatively charged if it contains more electrons than protons. What […]
How do you protect bats from wind turbines?
How do you protect bats from wind turbines? Tim Hayes holds the Bat Deterrent System, designed by NRG Systems. It’s a set of six speakers that emits a high frequency from the top of a wind turbine to discourage bats from approaching. Fatalities at this rate could cause population declines for some species. Why do […]
Which type of supernova is more common?
Which type of supernova is more common? Type Ib supernovae are the more common and result from Wolf–Rayet stars of type WC which still have helium in their atmospheres. For a narrow range of masses, stars evolve further before reaching core collapse to become WO stars with very little helium remaining and these are the […]
What are examples of constants in an experiment?
What are examples of constants in an experiment? Experimental constants are values that do not change either during or between experiments. Many natural forces and properties, such as the speed of light and the atomic weight of gold, are experimental constants. What is the meaning of constant variable? A constant is a value that cannot […]
What should be your preferred method of controlling the hazard?
What should be your preferred method of controlling the hazard? Elimination is the process of removing the hazard from the workplace. It is the most effective way to control a risk because the hazard is no longer present. It is the preferred way to control a hazard and should be used whenever possible. Can the […]
Is the image in a plane mirror real or virtual?
What are the effects of acid rain on human?
What are the effects of acid rain on human? Acid Rain Can Cause Health Problems in People Air pollution like sulfur dioxide and nitrogen oxides can cause respiratory diseases, or can make these diseases worse. Respiratory diseases like asthma or chronic bronchitis make it hard for people to breathe. What is acid rain in short […]
What is the N P ratio?
What is the N P ratio? Introduction. N/P ratio, or basically the ratio of positively-chargeable polymer amine (N = nitrogen) groups to negatively-charged nucleic acid phosphate (P) groups, is perhaps one of the most important physicochemical properties of polymer-based gene delivery vehicles. Why is the Redfield ratio 16 1? Redfield proposed that the ratio of […]