What are the disadvantages of modern periodic table? What are the disadvantages of modern periodic table? Position of hydrogen is not satisfactory, it can be placed either in group I or 17 group of the first period. It fails to accommodate lathanides and actinides in the main body of the periodic table. These are kept […]
Does amplitude increase at natural frequency?
Does amplitude increase at natural frequency? When you drive the ball at its natural frequency, the ball’s oscillations increase in amplitude with each oscillation for as long as you drive it. The phenomenon of driving a system with a frequency equal to its natural frequency is called resonance. A system being driven at its natural […]
Is sourness a chemical property?
Is sourness a chemical property? 1 Answer. The answer is probably not meaningful, because sourness is not an intrinsic chemical property. What chemical makes things bitter? Many alkaloids, which usually are toxic, elicit a bitter taste. Chemical compounds, such as quinine, produce a bitter taste by binding taste bud receptors that couple to G-proteins. G-protein […]
Are coherent sources of light?
Are coherent sources of light? Coherent source of light are those sources which emit a light wave having the same frequency, wavelength and in the same phase or they have a constant phase difference. Can 2 sources be coherent? In physics, two wave sources are perfectly coherent if their frequency and waveform are identical and […]
Which traffic light should lit after Green at Junction?
Which traffic light should lit after Green at Junction? A: In case the green light is lit and you are already in the intersection, and then the light turns yellow or even red, for that matter, you will need to complete your turn. What does the green light indicate? To green-light is to give permission […]
What is the second stage of man?
Is a Van de Graaff positive or negative?
Is a Van de Graaff positive or negative? Most Van de Graaff generators build up a positive electric charge on their domes by separating negative electric charge from positive electric charge. This is accomplished by a rotating insulated belt. When two different materials are rubbed together, one object takes away electrons from the other object. […]
What are the factors affecting child development?
What are the factors affecting child development? 10 Factors That Influence the Growth and Development of a Child Heredity. Heredity is the transmission of physical characteristics from parents to children through their genes. Environment. Sex. Exercise and Health. Hormones. Nutrition. Familial Influence. Geographical Influences. How do you provide nurturing environment for your child? 6 Nurturing […]
What are the 5 types of lymphocytes?
What are the 5 types of lymphocytes? Five types of lymphocytes (Ig-theta-, Ig-theta+weak, Ig-theta+strong, Ig+theta- and Ig+theta+) characterized by double immunofluorescence and electrophoretic mobility. Are lymphocytes natural killer cells? Natural Killer (NK) Cells are lymphocytes in the same family as T and B cells, coming from a common progenitor. However, as cells of the innate […]
Which mirror is used in headlight of a car?
Which mirror is used in headlight of a car? Concave mirror is used in headlights of vehicles, because when the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances). A concave mirror is a converging mirror as opposed to a convex mirror which […]