Category: Physics

Why snow is white? There’s a scientific reason that snow is white Light is scattered and bounces off the ice crystals in the snow. The reflected light includes all the colors, which, together, look white. And all the colors of light add up to white. Why is snow fluffy? The light fluffy snow forms when […]

What is the formula for copper chloride? CuCl Does copper chloride dissolve in water? Copper(I) chloride, commonly called cuprous chloride, is the lower chloride of copper, with the formula CuCl. The substance is a white solid sparingly soluble in water, but very soluble in concentrated hydrochloric acid. Where is copper II chloride found? Natural occurrence. […]

When should you hit the tennis ball? The earlier you hit your shots, the less time your opponent has to get ready for theirs, and hitting early usually means hitting the ball on the rise – hitting the ball as it’s coming up off the bounce instead of after its bounce has begun to fall […]

When an electron does transition from N 4 to N 2? Explanation: Jump to second orbit leads to Balmer series. The jump from 4th orbit shall give rise to second line of Balmer series. When an electron in hydrogen atom is excited? When an electron in hydrogen atom is excited, from its 4th to 5th […]

How much electricity does a 9 watt LED bulb use? 9 watt led bulb power consumption: Yearly power consumption = 9*24*365 + 10% power loss = 78840 + 7884 = 86724 Watts hour. How much work joules are done using a 60 watt light bulb for one hour? The energy consumed in 1 hour will […]

What is the difference between psychological and physiological stress? While physiological stress activates a motoric fight-or-flight reaction, during psychosocial stress attention is shifted towards emotion regulation and goal-directed behavior, and reward processing is reduced. What is a physiological sign of pain? Pain often causes recognisable physiological and behavioural changes, but the absence of these changes […]

Does capacitor block AC or DC? When the capacitor is connected to the DC voltage source, initially the positive terminal of the DC supply pulls the electrons from one terminal and pushes the electrons to the second terminal. How do capacitors increase DC voltage? The effect of the capacitor on the voltage may have the […]

What Cannot be determined by blood spatter? Which of the following CANNOT be determined by observing blood spatter? The DNA of the victim. The position of the assailant at the time of the spatter. Which is more likely to be deposited on the object or person creating the impact? Forward spatter is projected outward and […]

What is current in short circuit? The short-circuit current is the current through the solar cell when the voltage across the solar cell is zero (i.e., when the solar cell is short circuited). The short-circuit current is due to the generation and collection of light-generated carriers. What is the difference between short circuit current and […]

What type of artificial light is best for plants? Artificial lighting: Fluorescent lights are by far the most economical and easy choice for houseplants. Incandescent lights give off a lot of heat and should be placed farther away from plant foliage. LED lights are also a low heat, energy-efficient artificial light source. What light bulb […]