What is the change in the direction of light by a mirror called? reflection of light When light goes from air to a medium the speed decreases? When light goes from air to a medium, its speed decreases by 30%. The refractive index of this. medium w.r.t. water is (uw = 4/3). Does the speed […]
What nationality has freckles?
What nationality has freckles? Freckles – they are an immediately recognisable “Irish” trait, up there with blue eyes and red hair. And they have been around for a long time: fossils found recently in China show that even some dinosaurs had freckled colouring. Why do some people get freckles and others don t? People with […]
What is the fastest you can travel in space?
What is the fastest you can travel in space? By 2024, it’s projected to reach a maximum speed of 430,000 mph (692,000 km/h). As of the 27th of September 2020, the Parker Solar Probe has already accelerated to a speed of 289,927 mph (466,592 km/h) relative to the Sun, officially becoming the fastest spacecraft to […]
What experimental evidence led Thomson to conclude that an electron has a negative charge and is very light?
What experimental evidence led Thomson to conclude that an electron has a negative charge and is very light? Thomson believed that the rays were particles because a paddle wheel was set in motion by the ray. He concluded that the beam was negatively charged because the ray came from the negative electrode. Which of the […]
How many atoms are in c2h8o?
How many atoms are in c2h8o? Elemental composition of C2H8O Element Symbol # Carbon C 2 Hydrogen H 8 Oxygen O 1 How many atoms are in 6nacl? Elemental composition of *6NaCl Element Symbol # Sodium Na 6 Chlorine Cl 6 How many atoms are in 2Fe no32? Elemental composition of *2Fe(NO3)2 Element Symbol # […]
What are the advantages of being endothermic?
What are the advantages of being endothermic? Pros and cons of an endothermic metabolism. The major advantage of endothermy over ectothermy is decreased vulnerability to fluctuations in external temperature. Regardless of location (and hence external temperature), endothermy maintains a constant core temperature for optimum enzyme activity. Are dogs endothermic? People, polar bears, penguins, and prairie […]
What is the formula of weight calculation?
Is base a current quantity?
Is base a current quantity? A fundamental quantity must be easy to measure therefore we use electric current as a fundamental quantity instead of charge. But current is taken to be a fundamental unit, while charge is a derived unit. So current is a base ‘unit’ but not a base ‘quantity’. Which is not basic […]
Why does mass affect speed?
Why does mass affect speed? Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. deals with faster-moving objects. The faster an object moves, the more necessary it is to use this theory in order to be accurate. As an object moves faster, its mass increases. Does mass […]