Why fluorescent light bulbs are better than incandescent? The phosphor fluoresces to produce light. A fluorescent bulb produces less heat, so it is much more efficient. This makes fluorescent bulbs four to six times more efficient than incandescent bulbs. That’s why you can buy a 15-watt fluorescent bulb that produces the same amount of light […]
How do you calculate change in temperature from specific heat?
How do you calculate change in temperature from specific heat? Example change in temperature = (100 – 25) = 75.0°C. change in thermal energy = mass × specific heat capacity × change in temperature. = 0 What is the example of change in Colour? Color changes from blue to light green. Copper reacts with oxygen, […]
What is relative motion explain with example?
What is relative motion explain with example? Relative motion is the calculation of the motion of an object with regard to some other moving or stationary object. For example, a person sitting in an airplane is at zero velocity relative to the airplane, but is moving at the same velocity as the airplane with respect […]
Are humans Photoautotrophs?
Are humans Photoautotrophs? Also Know, are humans Photoautotrophs? Most get their energy from organic molecules such as sugars. This nutritional mode is very common among eukaryotes, including humans. Photoautotrophs are cells that capture light energy, and use carbon dioxide as their carbon source. What is Chemoheterotrophs? noun, plural: chemoheterotrophs. An organism deriving energy by ingesting […]
What are the 5 sources of stress?
What are the 5 sources of stress? Examples of life stresses are: The death of a loved one. Divorce. Loss of a job. Increase in financial obligations. Getting married. Moving to a new home. Chronic illness or injury. Emotional problems (depression, anxiety, anger, grief, guilt, low self-esteem) How can I relax my mind? Relaxing the […]
What is the terminal voltage of bottom battery?
What is the terminal voltage of bottom battery? Referring to normal automobile battery, the battery has a terminal voltage of 12.0 V when no current flows. What does terminal voltage mean? The voltage output of a device is measured across its terminals and, thus, is called its terminal voltage V. Terminal voltage is given by. […]
What is the formula of image distance?
What is the formula of image distance? hi = 8.81 cm The negative value for image distance indicates that the image is a virtual image located on the object’s side of the lens. How do you calculate image distance? Procedure Place the convex lens on a lens holder, placing the screen on the other side […]
Does the density of a solid change with temperature?
Does the density of a solid change with temperature? Density is a physical property of substances that compares the relationship between volume and mass. Density is affected by temperature because as temperature increases so does the kinetic energy of the particles. Can you change the density of a solid? Density is the amount of mass […]
Which metal has the highest specific heat capacity?
Which metal has the highest specific heat capacity? The metal with highest specific heat is A. Be. B. Al. C. Ag. D. Au. Solution. Out of the given four metals, Be has highest specific heat (metal with lowest atomic mass will have highest specific heat). Which metal has the lowest specific heat capacity? Gold Which […]
What is the basic principle of laser action?
What is the basic principle of laser action? Principle: Due to stimulated emission the photons multiply in each step-giving rise to an intense beam of photons that are coherent and moving in the same direction. Hence the light is amplified by Stimulated Emission of the Radiation. Termed LASER. What are the applications of laser light? […]