Why does ink from ordinary fountain pen spreads if water is spilled on a page written with it.

Q: Explain Fleming's left hand rule. Also give its interpretation.

A: When a current carrying conductor is placed in a magnetic field, a force acting on the conductor in…

Q: Why is Visible radiation able to remove electrons from sodium but not from zinc?

A: Photoelectric effect: It states that the when light falls on a metal surface it emits electrons.…

Q: QI: How the Van Der Waals bonds arise between atoms?

A: Van Der Waals bond: It is a weak force of attraction between electrically neutral atoms which pass…

Q: In a scanning electron microscope, select the correct answer Select one: O a. can be used to image…

A: In a scanning electron microscope, the electron beam can penetrate through all the sample

Q: Electrons do something that rhymes with “twin bear”. When do they need to do this?

A: electrons make cooper pair which rhymes with "twin bear". At very low temperatures show boson-like…

Q: A set of interacting parts forming a complex whole

A: group of interacting, interrelated, or interdependent elements forming a complex whole or unity  An…

Q: Why does the balloon filled with water did not pop out like the balloon filled with air when it is…

A: Comparison between air balloon and water balloon:

Q: How many electrons does an element  given as    24X50    has? What is the net electric charge of…

A: According to question--- Given data-- Element ‐--- 24X50 We have to find- Net charge on Element ?

Q: Bohr magneton is defined as magnetic moment of an electron orbital motion magnetic moment of an…

A: Bohr magneton

Q: Laser ablation is an effective tool for probing micro areas of solid samples. How does it work?

A: The mechanism of laser ablation depends on physical properties of metals and environment medium.…

Q: If electrons are negatively charged and the nucleus is positively charged, why do they not attract…

A: Electrons revolve around the positively charged nucleus in circular orbit .

Q: Both statements are true.  Both statements are false.  First statement is true and second is false…

A: Answer:- Both statements are true.    Statements 1. To maintain electric neutrality, an atom must…

Q: It is relatively easy to strip the outer elections from a heavy atom like that of uranium (which…

A: YES, It is relatively easy to remove outer electrons from a heavy atom like uranium, but it is very…

Q: Most metals, like iron, are corroded easily, discuss why aluminum does not corrode even when exposed…

A: Most metals like iron, copper, even inert metals like silver do corrode when exposed to air for…

Q: What is the relation betwen iron and copper?

A: The chemical element iron has the symbol Fe and the atomic number 26. It is a metal that belongs to…

Q: Name the radiation which can be detected by a solution of silver chloride?

A:

Q: How does microwave cooking differ from conventional cooking?

A: Given:  micowave cooking and conventional cooking

Q: How many protons does a gold atom have:

A: An element symbol in atomic physics is represent as, XZAwherer, A is the mass numberZ = atomic…

Q: Which rays cause skin damage?   A) X­-Rays B) UV Rays C) Infra red rays D) Yellow Rays

A: UV damages the skin when falls on the skin due to its high frequency. UV rays cause skin cancer and…

Q: what occurs when outer electrons that buzz about the atomic nucleus encounter electromagetic waves?

A: When an electromagnetic wave is incident on the outermost electron or loosely bound electron of an…

Q: Why led bulb best than CFL?

A: CFL or Compact fluorescent lamps were used in place of tungsten bulbs for long time. They work by…

Q: Why is chromium so useful for decorative electroplating?

A: Electroplating: Electroplating in simple words is defined as the process of applying a coating of…

Q: This process produces NADPH. * Light Deaction

A: NADPH plays a crucial role in some of the chemical reactions that make up for the process of…

Q: What results from an unequal sharing of electrons between atoms?

A: Electrons are carriers of charges.

Q: اثبت مايأتي inl ١ـ e(2+3i( = -e2

A: To prove, e(2+3πi)=-e2

Q: What would the atom below do to become an ion?

A: When an atom accept eletron or reject electron then the atom become an ion. We know the the number…

Q: Sketch a model of Carbon-13 with a (-2) charge. - Include the number of protons, neutrons, and…

A: Carbon-13 is an isotope of carbon that contains 6 protons, 7 neutrons and 6 electrons. It has no…

Q: Why do lasers have so many varied applications?

A: Why do lasers have so many varied applications.

Q: Do atoms ever actually touch each other?

A: The  atom consists of three particles: protons electrons neutrons In the nucleus of atom there are…

Q: how to calculate the wavelength, in meters, of electromagnetic radiation needed to remove an…

A: Electron can be removed from valence shell of an atom on application of electromagnetic radiation.…

Q: What is electrophorus?

A: Electrophorus is invented by Jhoan Carl.

Q: Discuss why equal masses of carbon atoms and oxygen atoms don't contain the same number of…

A: When a loaf of bread is squeezed its volume will decrease and as there is no loss of the mass the…

Q: Cite evidence that the idea of opposites as components of a wholeness preceded Bohr’s principle of…

A:

Q: A monatomic ion has a charge of +2. The nucleus of the ion has a mass number of 86. The number of…

A:

Q: What is Curie's law ?

A: Curie's law is associated with magnetization of paramagnetic materials. The law states that the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.