Is object distance negative in concave mirror? object distance is always negative for all the lens & mirrors. image distance depends on object distance in case of concave mirror and convex lens. ‘v’ is always positive for convex mirror & concave lens. What is the sign of image distance of a concave mirror? When image […]
What is called covalent bond?
What is called covalent bond? Covalent bond, in chemistry, the interatomic linkage that results from the sharing of an electron pair between two atoms. The binding arises from the electrostatic attraction of their nuclei for the same electrons. Where is the covalent bond in DNA? The DNA double helix has two types of bonds, covalent […]
What causes big fluffy clouds?
What causes big fluffy clouds? “Although most clouds look light and fluffy, they are in fact highly turbulent with very strong air currents within them and an enormous mass of suspended water,” he says. Do stratus clouds bring rain? Stratus clouds are uniform and flat, producing a gray layer of cloud cover which may be […]
What is the density of a substance of mass?
What are two conditions required to define work?
What are two conditions required to define work? Two conditions required to do work are force applied and displacement produced. What are the main factors that affect work performance? What are the factors Influencing Employee Performance? Job Satisfaction. Training and Development. Employee Engagement. Goals and Expectations. Tools and Equipment. Morale and Company culture. What are […]
What is the focal point of an artwork?
What is the focal point of an artwork? The focal point of a painting is the area in the composition to which the viewer’s eye is naturally drawn. It is essential to classic art, although abstract artists may deliberately create compositions without focal points. Focal points may be of any shape, size or color. Is […]
What is the major source of energy for living organisms?
What is the major source of energy for living organisms? The Sun What is importance of classification? Three importance of classification are: It helps in the identification of living organisms as well as in understanding the diversity of living organisms. To understand and study the features, similarities and differences between different living organisms and how […]
What kinds of sensory receptors are in the skin?
What kinds of sensory receptors are in the skin? The sensory receptors in the skin are: cutaneous mechanoreceptors. Ruffini’s end organ (skin stretch) End-bulbs of Krause (Cold) Meissner’s corpuscle (changes in texture, slow vibrations) Pacinian corpuscle (deep pressure, fast vibrations) thermoreceptor. nociceptors. chemoreceptors. What are the four general senses? The general senses are pain, temperature, […]
What lives in a salt marsh?
What lives in a salt marsh? Composed of fine silts and clays, mud flats harbor burrowing creatures including clams, mussels, oysters, fiddler crabs, sand shrimp, and bloodworms. Salt marshes are salty because they are flooded by seawater every day. They are marshy because their ground is composed of peat. How do humans impact salt marshes? […]
What are the elements of circle?
What are the elements of circle? Important Circle Parts Radius: The distance from the center of the circle to its outer rim. Chord: A line segment whose endpoints are on a circle. Diameter: A chord that passes through the center of the circle. Secant: A line that intersects a circle in two points. How do […]